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SMTP Senpai for WordPress: send WordPress email through the EU SMTP relay and email API by MailSenpai. API key or SMTP mode, test email, sender domain check (SPF, DKIM, DMARC, MX), email log. Docs: https://en.mailsenpai.com/wordpress-smtp/

Official JavaScript packages for SMTP Senpai, the EU SMTP relay and email API by MailSenpai: Node SDK, Strapi provider, Payload CMS adapter, Medusa plugin, Directus extension, NestJS module, Activepieces piece. Docs: https://en.mailsenpai.com/integrations/

hMailServer: a free, open-source mail server for Windows and Linux. SMTP, IMAP and POP3, webmail, a REST API, the Control Panel and the browser Control Deck. AGPL-3.0-or-later. Maintained by Progressive Robot Ltd.

Multi-mailbox IMAP/SMTP control plane. One YAML, N accounts, one bearer-auth gate. Unified inbox across Gmail/Outlook/iCloud/mailo/inbox.lv/whatever: search, read, mark, send. Reader mode strips HTML chrome for LLMs. Streamable-HTTP MCP server + REST API on one port. Ships as a Docker image.

Preserve your emails for with this open-source self-hostable email archive!

n8n community nodes for MailSenpai and SMTP Senpai: send email through the EU SMTP relay and email API, manage suppressions, react to delivery events. npm: n8n-nodes-mailsenpai. Docs: https://en.mailsenpai.com/n8n-smtp/

Microsoft Social Login plugin for RosarioSIS. User login using Microsoft as an external identity provider (through the OAuth 2.0 protocol).

Un service web en Flask/Python pour analyser les enregistrements MX d’un domaine et la bannière SMTP afin d'identifier le serveur SMTP utilisé et de détecter l'hébergeur mail associé.

Email Validator web service validates email addresses: https://email-validator.pommalabs.xyz/

Fake SMTP server that catches outgoing email for local development.

Correspondences brings a clean, modern webmail-style interface into the WordPress block editor. It renders email threads as interactive accordions — ideal for showcasing support conversations, case studies, team discussions, or any narrative content that benefits from a structured, collapsible layout.

Self-hosted email manager with rich composer, templates, analytics & full data ownership

Simple Graphical Email Dissection Tool

https://mikkcz.gitlab.io/export-emailu-do-excelu/

Email plugin for @jitesoft/yolog logger.

A fork of "markdown-here-revival", a Thunderbird markdown renderer and syntax highlighter, just with another set of icons.

Collect logs from docker containers stdout and forward to various destinations according to your configuration.

Mastodon posts to readable emails.

The email template that spicy use in some of contact in website and apps