# Fastmail vs Proton Mail For Business Comparison


| | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Star Rating** | 4.2 out of 5 | 4.6 out of 5 | 
| **Total Reviews** | 17 | 495 | 

---
## Top Pros & Cons

### Fastmail

**Not enough data**

### Proton Mail For Business

Pros:
- Ease of Use (3 reviews)
- Encryption (2 reviews)

Cons:
- Compatibility Issues (1 reviews)
- Complex Processes (1 reviews)

---
## Ratings Comparison
| Rating | Fastmail | Proton Mail For Business | 
|---|---|---|
  | **Meets Requirements** | 7.7 (10 reviews) | 9.0 (133 reviews) | 
  | **Ease of Use** | 7.8 (10 reviews) | 9.1 (469 reviews) | 
  | **Ease of Setup** | 8.7 (5 reviews) | 9.0 (42 reviews) | 
  | **Ease of Admin** | Not enough data | 9.2 (24 reviews) | 
  | **Quality of Support** | 7.0 (10 reviews) | 8.9 (371 reviews) | 
  | **Has the product been a good partner in doing business?** | Not enough data | 9.2 (21 reviews) | 
  | **Product Direction (% positive)** | 6.5 (10 reviews) | 9.1 (130 reviews) | 

---
## Pricing

### Fastmail

#### Entry-Level Pricing

Plan: Basic

Price: $3.00 1 User Per Month

Description: Fastmail essentials for those with low storage needs.

Key Features:
- 6 GB total storage per user
- 24/7 expert support from real people
- Keep your emails private and secure with robust encryption

[Browse all 3 editions](https://www.g2.com/products/fastmail/pricing)

#### Free Trial

Yes

### Proton Mail For Business

#### Entry-Level Pricing

Plan: Mail Essentials

Price: Starting at $6.99 1 User Per Month

Description: Includes these features:

Key Features:
- 15 GB storage per user
- 10 email addresses per user
- 3 custom email domains supported

[Browse all 3 editions](https://www.g2.com/products/proton-mail-for-business/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Collaboration & Productivity

| Product | Score | Reviews |
|---|---|---|
| **Fastmail** | N/A | N/A |
| **Proton Mail For Business** | N/A | N/A |

#### Additional Functionality

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **To-Do List** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Screen Sharing** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Brainstorming** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Real Time Editing** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Assignment Management** | Not enough data | Not enough data | 
| **Task Scheduling** | Not enough data | Not enough data | 
| **Project Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Task Progress Tracking** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 

### Email Security

| Product | Score | Reviews |
|---|---|---|
| **Fastmail** | N/A | N/A |
| **Proton Mail For Business** | N/A | N/A |

#### Additional Functionality

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Phishing Protection** | Not enough data | Not enough data | 
| **Threat Response** | Not enough data | Not enough data | 
| **Domain Check** | Not enough data | Not enough data | 
| **Security Auditing** | Not enough data | Not enough data | 
| **AI/Machine Learning** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Anomaly/Malware Detection** | Not enough data | Not enough data | 
| **SURLB/URIBL Filtering** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Scheduled/Automated Reports** | Not enough data | Not enough data | 
| **For MSPs** | Not enough data | Not enough data | 
| **Whitelisting/Blacklisting** | Not enough data | Not enough data | 
| **Fraud Detection** | Not enough data | Not enough data | 
| **Spam Blocker** | Not enough data | Not enough data | 
| **Spam Quarantine** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Data Leak Prevention** | Not enough data | Not enough data | 
| **Encryption** | Not enough data | Not enough data | 
| **Audit Trail** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Spam Analysis** | Not enough data | Not enough data | 
| **Policy Management** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Vulnerability Scanning** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Threat Protection** | Not enough data | Not enough data | 
| **Email Attachment Protection** | Not enough data | Not enough data | 
| **Email Filtering** | Not enough data | Not enough data | 
| **Two-Factor Authentication** | Not enough data | Not enough data | 

### Calendar

| Product | Score | Reviews |
|---|---|---|
| **Fastmail** | N/A | N/A |
| **Proton Mail For Business** | N/A | N/A |

#### Calendar View

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Multi-Calendar View** | Not enough data | Not enough data | 
| **Customizable Viewing** | Not enough data | Not enough data | 

#### Shared Calendar

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Calendar Collaboration** | Not enough data | Not enough data | 
| **Multiple Calendar Management** | Not enough data | Not enough data | 
| **Event Calendar** | Not enough data | Not enough data | 
| **Availability Management** | Not enough data | Not enough data | 
| **Event Management** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Appointment Management** | Not enough data | Not enough data | 
| **Attendance Management** | Not enough data | Not enough data | 
| **Booking Management** | Not enough data | Not enough data | 
| **Timesheet Management** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Employee Management** | Not enough data | Not enough data | 

#### Accessibility

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Screen Reader Compatibility** | Not enough data | Not enough data | 
| **Keyboard Shortcuts** | Not enough data | Not enough data | 

#### Integration

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Sync Multiple Calendars** | Not enough data | Not enough data | 
| **Import Events** | Not enough data | Not enough data | 
| **Software Integrations** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Website Integration** | Not enough data | Not enough data | 

#### Notifications

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Customized Calendar Notifications** | Not enough data | Not enough data | 
| **Location-Based Alerts** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Mobile Alerts** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **AI Text-to-Image** | Not enough data | Not enough data | 
| **AI Text-to-Speech** | Not enough data | Not enough data | 
| **AI Image-to-Text** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Calendar

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Calendar/Reminder System** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Address Book** | Not enough data | Not enough data | 
| **Class Scheduling** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Email Reminders** | Not enough data | Not enough data | 
| **Scheduling** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **SMS Messaging** | Not enough data | Not enough data | 
| **Automated Scheduling** | Not enough data | Not enough data | 
| **Task Scheduling** | Not enough data | Not enough data | 
| **Facility Scheduling** | Not enough data | Not enough data | 
| **Reminders** | Not enough data | Not enough data | 
| **Attendance Tracking** | Not enough data | Not enough data | 
| **Customer Database** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Room Booking** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Electronic Payments** | Not enough data | Not enough data | 
| **Customizable Forms** | Not enough data | Not enough data | 
| **Calendar Sync** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Color Codes/Icons** | Not enough data | Not enough data | 
| **Event Scheduling** | Not enough data | Not enough data | 
| **Real-Time Updates** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 

### Email Management

| Product | Score | Reviews |
|---|---|---|
| **Fastmail** | N/A | N/A |
| **Proton Mail For Business** | N/A | N/A |

#### Sorting & Filtering

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Attachment Search** | Not enough data | Not enough data | 
| **Tags** | Not enough data | Not enough data | 
| **AI Sorting** | Not enough data | Not enough data | 
| **Predefined Rules** | Not enough data | Not enough data | 

#### Integrations

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Microsoft Outlook Integration** | Not enough data | Not enough data | 
| **Gmail Integration** | Not enough data | Not enough data | 
| **Apple Calendar Integration** | Not enough data | Not enough data | 
| **Social Media Integration** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 

#### Time Management

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Unified Inbox** | Not enough data | Not enough data | 
| **Email Automation** | Not enough data | Not enough data | 
| **Snooze** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | 
| **AI Text-to-Speech** | Not enough data | Not enough data | 
| **AI Text Summarization** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 

#### Agentic AI - Email Management

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Whitelisting/Blacklisting** | Not enough data | Not enough data | 
| **Customizable Fields** | Not enough data | Not enough data | 
| **Signature Management** | Not enough data | Not enough data | 
| **Shared Inboxes** | Not enough data | Not enough data | 
| **Email Distribution** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 
| **Customizable Forms** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Mobile App** | Not enough data | Not enough data | 
| **Routing** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Inbox Management** | Not enough data | Not enough data | 
| **Queue Management** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Email Marketing** | Not enough data | Not enough data | 
| **Data Recovery** | Not enough data | Not enough data | 
| **Archiving & Retention** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Autoresponders** | Not enough data | Not enough data | 
| **Multiple User Accounts** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Customer Segmentation** | Not enough data | Not enough data | 
| **Search/Filter** | Not enough data | Not enough data | 
| **Support Ticket Management** | Not enough data | Not enough data | 
| **Canned Responses** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Response Management** | Not enough data | Not enough data | 
| **Email Templates** | Not enough data | Not enough data | 
| **Email Monitoring** | Not enough data | Not enough data | 
| **Campaign Management** | Not enough data | Not enough data | 
| **Email Tracking** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Spam Blocker** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Customizable Templates** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Campaign Analytics** | Not enough data | Not enough data | 
| **Workflow Automation** | Not enough data | Not enough data | 

### Email

| Product | Score | Reviews |
|---|---|---|
| **Fastmail** | N/A | N/A |
| **Proton Mail For Business** | 6.9/10 | 13 |

#### Generative AI

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **AI Text Generation** | Not enough data | 6.8 (12 reviews) | 
| **AI Text Summarization** | Not enough data | 7.0 (9 reviews) | 
| **AI Text-to-Speech** | Not enough data | Feature Not Available | 
| **Autonomous Task Execution** | Not enough data | Feature Not Available | 
| **Cross-system Integration** | Not enough data | Feature Not Available | 
| **Proactive Assistance** | Not enough data | Feature Not Available | 

### Email Encryption

| Product | Score | Reviews |
|---|---|---|
| **Fastmail** | N/A | N/A |
| **Proton Mail For Business** | 9.1/10 | 337 |

#### Encryption Techniques - Email Encryption

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Encryption Algorithms** | Not enough data | 9.8 (20 reviews) | 
| **Transport Encryption** | Not enough data | 9.8 (19 reviews) | 
| **End-to-End Encryption** | Not enough data | 9.8 (115 reviews) | 

#### Authentication, Verification, and Access Controls - Email Encryption

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Revocation Mechanisms** | Not enough data | Not enough data | 
| **Access Controls** | Not enough data | 9.1 (20 reviews) | 
| **Digital Signatures** | Not enough data | 9.4 (8 reviews) | 
| **Certificate Authorities** | Not enough data | 9.3 (5 reviews) | 

#### Security Enhancements and Auditing - Email Encryption

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Malware Scanning** | Not enough data | 9.3 (7 reviews) | 
| **Reporting** | Not enough data | Not enough data | 
| **Audit Trails** | Not enough data | Feature Not Available | 
| **Data Loss Prevention (DLP)** | Not enough data | Feature Not Available | 

#### Integration, Compatibility, and Usability - Email Encryption

| Feature | Fastmail | Proton Mail For Business | 
|---|---|---|
| **User-Friendly Interfaces** | Not enough data | 8.7 (254 reviews) | 
| **APIs and SDKs** | Not enough data | Feature Not Available | 
| **Email Client Integration** | Not enough data | 6.5 (40 reviews) | 
| **Automation** | Not enough data | 9.0 (27 reviews) | 

---
## Categories
**Shared Categories (1):** [Email Software](https://www.g2.com/categories/email)

**Unique to Fastmail (2):** [Calendar Software](https://www.g2.com/categories/calendar-software), [Email Management Software](https://www.g2.com/categories/email-management)

**Unique to Proton Mail For Business (1):** [Email Encryption Software](https://www.g2.com/categories/email-encryption)


---
## Reviewer Demographics

### By Company Size

| Segment | Fastmail | Proton Mail For Business | 
|---|---|---|
| **Small-Business** | 76.5% | 63.7% | 
| **Mid-Market** | 23.5% | 25.1% | 
| **Enterprise** | 0% | 11.2% | 

### By Industry

#### Fastmail

- **Information Technology and Services:** 29.4%
- **Marketing and Advertising:** 11.8%
- **Human Resources:** 11.8%
- **Translation and Localization:** 5.9%
- **Telecommunications:** 5.9%
- **Non-Profit Organization Management:** 5.9%
- **Investment Management:** 5.9%
- **Education Management:** 5.9%
- **Consumer Services:** 5.9%
- **Computer & Network Security:** 5.9%
- **Other:** 5.9%

#### Proton Mail For Business

- **Information Technology and Services:** 10.4%
- **Computer Software:** 7.9%
- **Mental Health Care:** 6.2%
- **Consulting:** 6.0%
- **Computer & Network Security:** 4.3%
- **Health, Wellness and Fitness:** 3.7%
- **Higher Education:** 3.1%
- **Internet:** 2.9%
- **Marketing and Advertising:** 2.5%
- **Non-Profit Organization Management:** 2.5%
- **Other:** 50.5%

---
## Alternatives

### Alternatives to Fastmail

- [Zoho Mail](https://www.g2.com/products/zoho-mail/reviews) — 4.4/5 stars (727 reviews)
- [Google Workspace](https://www.g2.com/products/google-workspace/reviews) — 4.6/5 stars (48216 reviews)
- [Microsoft 365](https://www.g2.com/products/microsoft365/reviews) — 4.6/5 stars (5867 reviews)
- [Microsoft Outlook](https://www.g2.com/products/microsoft-outlook/reviews) — 4.5/5 stars (3539 reviews)
- [Superhuman Mail](https://www.g2.com/products/superhuman-mail/reviews) — 4.7/5 stars (1313 reviews)
- [Thunderbird](https://www.g2.com/products/thunderbird/reviews) — 4.3/5 stars (340 reviews)
- [Front](https://www.g2.com/products/front/reviews) — 4.7/5 stars (2514 reviews)
- [Titan](https://www.g2.com/products/titan-titan/reviews) — 4.6/5 stars (569 reviews)
- [Spike](https://www.g2.com/products/spike/reviews) — 4.6/5 stars (261 reviews)
- [Boomerang for Gmail](https://www.g2.com/products/boomerang-for-gmail/reviews) — 4.6/5 stars (423 reviews)

### Alternatives to Proton Mail For Business

- [Spike](https://www.g2.com/products/spike/reviews) — 4.6/5 stars (261 reviews)
- [Google Workspace](https://www.g2.com/products/google-workspace/reviews) — 4.6/5 stars (48216 reviews)
- [Microsoft Outlook](https://www.g2.com/products/microsoft-outlook/reviews) — 4.5/5 stars (3539 reviews)
- [Zoho Mail](https://www.g2.com/products/zoho-mail/reviews) — 4.4/5 stars (727 reviews)
- [Apple Mail](https://www.g2.com/products/apple-mail/reviews) — 3.9/5 stars (159 reviews)
- [Yahoo! Mail](https://www.g2.com/products/yahoo-mail/reviews) — 3.9/5 stars (104 reviews)
- [HEY](https://www.g2.com/products/basecamp-hey/reviews) — 3.9/5 stars (14 reviews)
- [Titan](https://www.g2.com/products/titan-titan/reviews) — 4.6/5 stars (569 reviews)
- [Superhuman Mail](https://www.g2.com/products/superhuman-mail/reviews) — 4.7/5 stars (1313 reviews)
- [Zimbra Collaboration Enterprise Collaboration](https://www.g2.com/products/zimbra-collaboration-enterprise-collaboration/reviews) — 3.6/5 stars (140 reviews)

---
## Top Discussions

### Fastmail

- Title: [What is Fastmail used for?](https://www.g2.com/discussions/what-is-fastmail-used-for) — 1 comment
  > **Top comment:** "fast mail"

### Proton Mail For Business

- Title: [Is ProtonMail legitimate?](https://www.g2.com/discussions/is-protonmail-legitimate) — 2 comments
  > **Top comment:** "Yes, I have been on their paid plan for a few years now. I highly recommend their services. They now have a cloud drive and a great VPN as well."
- Title: [What is Protonmail used for?](https://www.g2.com/discussions/protonmail-what-is-protonmail-used-for) — 1 comment
  > **Top comment:** "Secure cross-platform email."
- Title: [Can police track ProtonMail?](https://www.g2.com/discussions/can-police-track-protonmail) — 1 comment
  > **Top comment:** "From my opinion, police needs special permission to track protonmail, I guess in some cases that police is trying to track protonmail using illegal methods,..."
- Title: [When is the launching date of proton drive?](https://www.g2.com/discussions/when-is-the-launching-date-of-proton-drive) — 1 comment, 2 upvotes
  > **Top comment:** "As the Project Status is still "Under Development", any new information on its release will be added on the ProtonMail Twitter: @ProtonMail. Hope that helps."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/fastmail-vs-proton-mail-for-business)