Best Email Security Services Providers

How Many Email Security Services Providers Products Does G2 Track?

Total Products under this Category: 148

Category Stats (Oct 2026)

  • Average Rating: 4.44/5 (↑0.06 vs Sep 2026) The average rating of products in this category, based on all submitted ratings

Last updated: October 02, 2026

How Does G2 Rank Email Security Services Providers Products?

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G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

SHI

SHI is a global leader in IT solutions and a value-added reseller, trusted by more than 17,000 organizations worldwide for over 35 years. With a team of 6,000 dedicated professionals, we deliver customized technology solutions across industries including finance, healthcare, manufacturing, education, and more. Our extensive partnerships with top technology providers — including AWS, Cisco, CrowdStrike, Dell, HP, Microsoft, Palo Alto, Pure Storage, and others — enable us to deliver industry-leading solutions tailored to your unique needs. As a top-tier Microsoft partner, SHI provides comprehensive Microsoft Services, from Azure and Microsoft 365 deployments to cloud migrations, security assessments, and licensing advisory. Our experts help you maximize your Microsoft investments through strategic consulting and seamless implementation. Our broad portfolio also includes: • SHI Complete: Managed IT services that support your entire technology lifecycle, from procurement and deployment to ongoing management and support. • Additional services: Cybersecurity, data center integration, device imaging and configuration, software asset management, flexible financing, and continuous support. • SHI One: An integrated digital platform for managing your IT assets, licenses, and support, offering actionable insights and operational efficiency. By leveraging the scale and portfolio of a global solutions integrator combined with the resources and personalized service of a local VAR, we’ll help you make better technology decisions. With SHI, you gain a trusted partner committed to helping you solve what’s next.

Average Rating: 4.7/5.0

Total Reviews: 136

Who Is the Company Behind SHI?

  • Seller: SHI International Corp.
  • Company Website:
  • Year Founded: 1989
  • HQ Location: Somerset, NJ
  • Twitter: @SHI_Intl
    6,392 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    8,087 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Manufacturing, Construction
  • Company Size: 14% Medium, 12% Large

What Do G2 Reviewers Say About SHI?

AI-generated summary from verified user reviews

Pros
  • Users value the excellent customer support from SHI, noting fast responses and a caring approach to service.
  • Users find SHI's team to be exceptionally helpful, providing responsive support and valuable assistance without bias.
  • Users value the exceptional teamwork of SHI, enhancing collaboration and focus on their core business needs.
  • Users value the knowledgeable support provided by SHI's team, ensuring they receive the help they need promptly.
  • Users commend the prompt response time of SHI, appreciating the swift communication and effective customer service.
Cons
  • Users find SHI to be expensive, as it sometimes offers higher prices compared to direct manufacturer purchases.
  • Users often experience high staff turnover, resulting in a lack of continuity and knowledge with new representatives.
  • Users find integration issues disruptive, especially when switching teams or representatives during acquisitions.
  • Users express concern over the limited availability of SHI services in various global locations, impacting accessibility.
  • Users desire more transparency and automation in tracking billing renewals and costs for SHI services.

What Are Recent G2 Reviews of SHI?

IT GOAT

IT GOAT is an IT Managed Services Provider that is focused on Business Outcomes for our clients. Everything we do at IT GOAT, we do to give our clients a competitive advantage. The way we give our clients a competitive advantage is by reducing time and cost to manage their own IT while eliminating IT downtime. By doing so, our clients are able to reallocate more time and money back in their business so they can outperform their competition.

Average Rating: 4.9/5.0

Total Reviews: 9

Who Is the Company Behind IT GOAT?

  • Seller: IT GOAT
  • Year Founded: 2018
  • HQ Location: Dallas, US
  • Twitter: @The_IT_Goat
    40 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    32 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Insurance
  • Company Size: 100% Small

What Are Recent G2 Reviews of IT GOAT?

What Are G2 Users Discussing About IT GOAT?

Premium Inboxes

Premium Inboxes provides managed cold email infrastructure for agencies, lead generation companies, and outbound sales teams. We help businesses launch and scale cold email campaigns without spending hours managing domains, DNS records, inbox configuration, authentication, warmup, monitoring, and replacements. Our team provisions and manages Google Workspace and Microsoft 365 inboxes, configures SPF, DKIM, and DMARC authentication, connects sending platforms, and maintains the infrastructure required for outbound campaigns. Customers can go live quickly while avoiding the complexity of building and managing the system internally. Premium Inboxes also provides ongoing infrastructure monitoring, bounce protection, blacklist checks, warmup management, inbox rotation, active and backup inbox tagging, throttling, alerts, and replacement support for flagged or failed inboxes. Our platform is designed for businesses that rely on cold email to generate leads, book meetings, and create sales pipeline. Whether you are launching a new outbound campaign or managing infrastructure across multiple clients and thousands of inboxes, Premium Inboxes helps you deploy faster and maintain reliable sending capacity as you grow. Premium Inboxes is more than an inbox provider. We provide the managed infrastructure and operational support businesses need to run cold email at scale.

Average Rating: 4.9/5.0

Total Reviews: 5

Who Is the Company Behind Premium Inboxes?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Premium Inboxes?

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Saffron Guru LLC

Saffron Guru LLC Remote & On-Site IT Support and Advanced Digital Security Solutions Founded in April 2016, Saffron Guru delivers expert remote and on-site IT support and comprehensive digital security solutions for small businesses, freelancers, and home-office environments across the U.S. and Canada. For a full decade, we have helped clients solve technology roadblocks while keeping them shielded from modern online threats—all backed by clear communication, absolute care, and advanced online security solutions. IT Support Services When your tech acts up, we fix it. We handle Windows PCs and Macs, performance slowdowns, system maintenance, and fresh device resets. From printer setup and troubleshooting, Wi-Fi and router configuration, network drops, Outlook mail glitches, Microsoft Office, accounting and business software to complex tech issues, we go to whatever lengths it takes to solve the problem so you can just work. Backup and Data Protection Files disappear and hardware dies—that is why we set up automated local and cloud backups to keep your critical documents safe and recoverable. If data loss does occur, our team steps in to recover your files and get you back on track fast. Security That Goes Beyond Antivirus Traditional antivirus alone is no longer enough, and Saffron Guru is built around that reality. Our multi-layered digital security solutions go beyond conventional software to defend against phishing attacks, hacking attempts, account takeovers, identity theft, digital scams, ransomware, malicious downloads, unauthorized software, and zero-day threats. Protections include strict download controls, safer browsing habits, device safeguards, account security hardening, and real human guidance when an online threat appears. A Decade of Trusted Service As a BBB Accredited Business with consistently strong ratings across Google, Facebook, Trustpilot, and the BBB, our entire reputation since 2016 is built one client at a time through transparent results, clear communication, and an absolute commitment to customer satisfaction. Complete, Human-Centered Support By uniting expert IT troubleshooting, advanced digital security solutions, and direct access to real human help under a single model, Saffron Guru helps clients keep their technology running smoothly, reduce digital risk, and operate with total confidence and peace of mind.

Average Rating: 5.0/5.0

Total Reviews: 4

Who Is the Company Behind Saffron Guru LLC?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Saffron Guru LLC?

Trustwave Services

Trustwave helps businesses fight cybercrime, protect data and reduce security risk. With cloud and managed security services, integrated technologies and a team of security experts, ethical hackers and researchers, Trustwave enables businesses to transform the way they manage their information security and compliance programs.

Average Rating: 4.1/5.0

Total Reviews: 7

Who Is the Company Behind Trustwave Services?

  • Seller: Singtel
  • Year Founded: 1879
  • HQ Location: Singapore, Singapore
  • Twitter: @Singtel
    41,126 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    8,377 employees on LinkedIn®
  • Ownership: SGX:Z74

Who Uses This Product?

  • Company Size: 57% Small, 29% Medium

What Are Recent G2 Reviews of Trustwave Services?

AT&T Network Services

Our cybersecurity products and services are powered by AT&T Threat Intellecta proprietary combination of cutting-edge technology, experienced staff, and proven processes. Threat Intellect provides a revolutionary security experience, so you can focus on what you do best.

Average Rating: 4.9/5.0

Total Reviews: 6

Who Is the Company Behind AT&T Network Services?

  • Seller: AT&T Inc.
  • Year Founded: 1876
  • HQ Location: Dallas, TX
  • Twitter: @ATT
    876,351 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    195,339 employees on LinkedIn®
  • Ownership: NYSE: T

Who Uses This Product?

  • Company Size: 67% Medium, 17% Large

What Are Recent G2 Reviews of AT&T Network Services?

What Are G2 Users Discussing About AT&T Network Services?

Centric Consulting

Centric Consulting is an international management consulting firm that solves its clients' toughest problems through deep expertise, tailored solutions, and cost efficiency. For 27 years, the firm has provided unmatched client experiences, deploying strategic advisors to tackle complex business and technology challenges in AI, cyber risk and compliance, data analytics, people and change, Microsoft, Salesforce, and more. Learn more at centricconsulting.com.

Average Rating: 3.8/5.0

Total Reviews: 17

Who Is the Company Behind Centric Consulting?

  • Seller: Centric Consulting
  • Year Founded: 1999
  • HQ Location: Dayton, OH
  • Twitter: @centric
    2,093 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,168 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 47% Large, 35% Small

What Are Recent G2 Reviews of Centric Consulting?

What Are G2 Users Discussing About Centric Consulting?

BAE Systems

BAE Systems is a global defence, aerospace and security company employing around 88,200 people worldwide. Our wide-ranging products and services cover air, land and naval forces, as well as advanced electronics, security, information technology, and support services.

Average Rating: 1.5/5.0

Total Reviews: 1

Who Is the Company Behind BAE Systems?

  • Seller: BAE Systems
  • Year Founded: 2016
  • HQ Location: Falls Church, US
  • Twitter: @BAES_Careers
    1,914 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    17,268 employees on LinkedIn®
  • Ownership: LON: BA

Who Uses This Product?

  • Company Size: 100% Medium

What Are G2 Users Discussing About BAE Systems?

Cyberalpha Consulting LLP

CyberAlpha Consulting LLP is a cybersecurity and information security consulting company providing VAPT, application and infrastructure security testing, cloud security assessments, security audits, risk assessment, GRC, and compliance consulting. We help organizations identify and address security risks, strengthen their security posture, and align their security programs with applicable industry standards and regulatory requirements.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Cyberalpha Consulting LLP?

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of Cyberalpha Consulting LLP?

CyberDuo

CyberDuo is a leading IT and Cybersecurity consultant based in Los Angeles. We make businesses more productive at the same time protecting them from external and internal cyber threats. Our services include Managed IT and Managed Security services, Cloud Computing and Compliance. In the world of IT, Cybersecurity became one of the challenging parts and that's the area we're extremely passioned about. Secure IT is what CyberDuo stands for.

Average Rating: 4.9/5.0

Total Reviews: 9

Who Is the Company Behind CyberDuo?

  • Seller: CyberDuo
  • Year Founded: 2010
  • HQ Location: Los Angeles, California
  • Twitter: @cyber2o
    80 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    31 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services
  • Company Size: 78% Medium, 67% Small

What Are Recent G2 Reviews of CyberDuo?

What Are G2 Users Discussing About CyberDuo?

Logix Cloud Email

Logix Cloud Email is an enterprise-class email, calendar and collaboration solution offering innovative messaging experiences, connecting end users to the information and activity in their personal clouds.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Logix Cloud Email?

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Logix Cloud Email?

What Are G2 Users Discussing About Logix Cloud Email?

PlatOps Security, LLC

PlatOps Security is a U.S.-based cloud security and software company specializing in email authentication, cloud infrastructure, and compliance solutions. We build practical security products that help organizations protect their domains, prevent email fraud, and simplify the management of modern email authentication standards. Our flagship platform, DDMARC, provides comprehensive monitoring and management for DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, and related email security technologies. Designed for businesses, managed service providers (MSPs), and multi-domain organizations, DDMARC delivers actionable insights, automated policy guidance, and centralized visibility to help reduce phishing risk and improve email deliverability. In addition to SaaS products, PlatOps Security provides cloud architecture, DevOps, Kubernetes, AWS, and cybersecurity consulting services for organizations operating in regulated and security-conscious environments.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind PlatOps Security, LLC?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of PlatOps Security, LLC?

PostMTA

Self-hosted enterprise MTA built directly on KumoMTA — the world's fastest open-source mail transfer agent. Full control. No vendor lock-in. No per-email fees.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind PostMTA?

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of PostMTA?

Spider IQ by Spider Gadget

SpiderIQ never stops watching. Our distributed scan engine crawls your entire digital footprint internal/external domains, subdomains, APIs, cloud assets, open ports, and misconfigured services and updates your attack surface map in real time, every minute of every day. Auto-discovers new assets within minutes of deployment Covers external perimeter, internal networks, and cloud environments Detects misconfigurations, exposed secrets, and open ports

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind Spider IQ by Spider Gadget?

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Spider IQ by Spider Gadget?

Tax Desk

We help cross-border businesses manage complex VAT obligations with confidence. From registration to reporting and payment, our expert-led services and technology platform ensure accuracy, compliance, and peace of mind across every jurisdiction you operate in. Tax Desk provides indirect tax compliance for businesses that want to simplify, centralise and automate their VAT, US Sales Tax, IOSS, OSS and EPR obligations across more than 90 countries. By combining dedicated account managers and in-country experts with its leading compliance platform, Tax Desk turns complex indirect tax requirements into straightforward registration, submission and payment. This gives businesses the confidence to expand into new markets while remaining fully compliant.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind Tax Desk?

  • Seller: Tax Desk
  • Year Founded: 2019
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    64 employees on LinkedIn®
  • Ownership: Tax International Services Kft
  • Phone: +44 7366193135

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Tax Desk?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 12, 2026