Pipefire (pipefire.ai) is cold email software for agencies that sets up and runs outreach for you.
Pipefire (pipefire.ai) is cold email software for marketing agencies and B2B service businesses. Unlike most cold email tools, Pipefire also does the work: it sets up the sending infrastructure and runs the outreach for the customer.
Pipefire buys the sending domains, sets up the mailboxes and warms them for 14 days before any cold email goes out. Pipefire finds prospects fresh from maps listings and business websites, writes the emails, sends them at a safe daily pace and sorts the replies.
Eight software agents do the work around the clock, and the customer approves every email before it is sent. Pipefire sends from its own domains, so the customer’s company domain never sends cold email.
Pipefire costs $497 a month on the Standard plan, month to month with no minimum term.
Pipefire was founded in 2026 by Mike Lovatt, an SEO and AI search specialist with more than 14 years of experience. Pipefire is operated by M&B Marketing SARL, a company registered in Paris, France (SIREN 837 729 300).
Mailamber is a privacy-first email client for Windows and Android built for professionals, freelancers and small businesses who work with clients by email.
It connects directly to the mail servers you already use (Microsoft 365, Google Workspace, Outlook, any IMAP/SMTP business account and Italian PEC certified email) and keeps messages, attachments and passwords on the user's own devices: client mail never passes through Mailamber's servers.
Key features for work: unified inbox for multiple business mailboxes with a signature per mailbox; read receipts with first-open notification and follow-up reminders when a client doesn't reply; link-click tracking (Tracking Pro add-on); trackers and remote images blocked before rendering; templates with variables and an HTML editor; rules, Smart Priority (AI, consent-based), scheduled send and undo send; Italian PEC with acceptance/delivery receipts matched to each message; one account across PC and phone with encrypted settings sync; 6 languages.
Pricing: Free plan forever (1 mailbox, 1 device); Plus EUR 2.99/month or EUR 24/year; Premium EUR 5.99/month or EUR 49/year. Billing via Paddle (merchant of record) with VAT invoices. No ads, no data selling.
emailens.dev is an email rendering linter that detects CSS compatibility issues across 21 email clients, including Gmail, Outlook, Apple Mail, and Yahoo. It integrates with code editors, CLI tools, and CI pipelines to flag rendering problems and acts as a quality assurance checkpoint for frameworks like React Email, MJML, and Maizzle, offering framework-native fix snippets. The platform analyzes spam scores, validates links, audits accessibility, optimizes images, and verifies SPF/DKIM records. It detects mobile content overflow, visual bugs, and unresolved merge tags, while simulating dark mode. An AI builder generates self-healing email code for cross-client compatibility. The open-source core is available via npm, and a Figma plugin lets design teams preview email rendering within Figma frames. MCP server integration enables compatibility analysis through AI assistants like Claude and Cursor.
SMTPly is email relay software enabling legacy devices to send messages via Microsoft 365 using OAuth2 authentication. Running as a local Windows service, it converts SMTP connections into Microsoft Graph API calls, ensuring data remains local without third-party servers. Its architecture includes an SMTP listener, relay queue with retry logic, and a Graph sender managing OAuth2 tokens for secure delivery. Security features include DPAPI encryption, certificate store integration, and health monitoring for certificate expiration alerts. A live mail tracker provides visibility into relayed messages, while usage reports summarize activity and errors. The software supports STARTTLS, implicit TLS, IP whitelisting, and sender domain filtering. Advanced editions offer multi-tenant routing, rate limiting, Prometheus metrics, and encrypted backups. Enterprise features include REST APIs, sandbox modes, outbound routing rules, and SIEM forwarding. Compliance tools ensure proof chains.
Otto Mail is a command center for your workday. Connect Gmail or Outlook and Otto reads what came in, tells you what matters, drafts replies in your voice, schedules meetings, snoozes and follows up, and runs recurring digests like a morning brief. Nothing is sent or changed without your approval. It works across mail, calendar, tasks and notes, on the web, iOS and Android. Otto never stores your email content: messages stay with Google and Microsoft. Free plan available; Plus and Pro add more AI and stronger models.
Relayzo is a robust, self-hosted email marketing solution designed to give your business full control over your campaigns and data. Engineered for marketers and technical teams alike, Relayzo offers an all-in-one platform where you can:
• Customize & Control: Tailor your email templates, automate workflows, and manage subscriber lists—ensuring every campaign aligns perfectly with your brand and messaging.
• Advanced Automation: Leverage powerful automation tools to create personalized drip campaigns, trigger-based emails, and A/B testing routines that optimize your engagement and conversion rates.
• Real-Time Analytics: Gain deep insights into campaign performance with comprehensive dashboards that track open rates, click-throughs, and other key metrics in real time.
• Enhanced Deliverability: Enjoy robust deliverability features designed to maximize inbox placement while maintaining compliance with data privacy standards.
• Seamless Integrations: Easily connect with your existing CRM, e-commerce platforms, or other marketing tools to streamline your workflow and centralize your marketing efforts.
With Relayzo, you not only secure your data behind your own firewall but also benefit from the flexibility to scale and customize your email marketing strategy as your business grows. Enjoy complete autonomy over your marketing operations with a solution built to empower your business every step of the way.
Email infrastructure for AI agents. Send, receive, and automate — all through a clean REST API. No SMTP configuration, no IMAP headaches. Start free with 5 inboxes.
SendFlow AI is the AI-powered email marketing platform that guarantees your emails land in the primary inbox. Our proprietary Primary Inbox Score analyzes every email before sending and predicts exactly where it will land — inbox or spam.
Key Features:
- Primary Inbox Score: AI-powered deliverability prediction before you hit send
- Smart Automation: Behavioral triggers, drip campaigns, and dynamic segmentation
- Predictive Analytics: AI forecasts open rates, click rates, and optimal send times
- GDPR Compliant: Full compliance with European privacy regulations
- Multi-language: Native support for Italian and Spanish markets
Built specifically for SMBs in Italy and Spain. Plans start at €29/month with a 14-day free trial.
Ballast is a cold email platform for founders and agencies. We charge you only for the emails you send instead of taxing you for every contact stored in your list. It includes automated tools to pause campaigns before you burn your domain reputation.
Inboxrise is cold email software with built-in warmup, for founders and agencies landing their first clients.
You connect your own inboxes with an app password. Inboxrise warms them up, ramps up sending safely, and refuses to send when sending would cost you your domain.
What it does:
- Warmup on every inbox, on every plan, with no limit on inboxes
- Campaigns with ramp caps, health pauses and hard-bounce suppression
- A placement test before a campaign goes live
- Free SPF, DKIM and DMARC check at inboxrise.com/check
On Growth and Scale:
- Target mode: every email opens with a checked fact about the lead's own business
- Lex, the AI assistant that builds campaigns with you and drafts replies
- Replies land in a pipeline board on their own
Plans start at $29 a month, with a 14-day free trial and no credit card.
AGS Orbit is cold email software that validates your leads, warms up mailboxes, rotates sends across inboxes and follows up automatically until prospects reply.
Long description: AGS Orbit helps B2B teams send cold email campaigns that reach the inbox. Upload an Excel or CSV sheet of leads. AGS Orbit checks every address before anything is sent and holds risky ones, so you can choose which to send later. Connect Google Workspace, Microsoft 365 or any SMTP/IMAP mailbox. Campaigns rotate across all of your mailboxes, with human-like pacing and a built-in warm-up schedule that raises volume gradually.
Write a pitch in minutes with the simple writer or AI. Each lead's own details, such as name, company, booth number and link, are merged in, and spintax varies the wording. Follow-ups stop as soon as someone replies. You can track opens, clicks and replies, check SPF, DKIM and DMARC, and run an inbox placement test before you launch. AGS Orbit is built for trade show and event outreach, lead generation agencies and sales teams.
Key features:
Automatic lead validation on upload (valid / risky / invalid)
Email warm-up with a gradual daily ramp
Inbox (mailbox) rotation across unlimited mailboxes
Automatic follow-ups that stop on reply
Personalised merge fields and spintax pitch rotation
Simple pitch writer and AI pitch writer
SPF / DKIM / DMARC checker and inbox placement test
Open, click and reply tracking, plus a one-click unsubscribe
Excel / CSV upload (only Email and Subject are required)
Google Workspace, Microsoft 365 and SMTP/IMAP support
Es una solución de gestión de firmas de correo electrónico fácil e intuitivo. Permite administrar las firmas de forma centralizada, dinamizar las firmas y automatizar campañas, segmentarlas y medirlas.
Funciona con Microsoft 365, Exchange, Google Workspace, Gmail, Outlook, Thunderbird y más.