Smtp Server Python Packages

aiosmtpd

A reimplementation of the Python stdlib smtpd.py based on asyncio.

smtpdfix

A SMTP server for use as a pytest fixture that implements encryption and authentication.

pytest-smtpd

A pytest fixture that creates an SMTP server.

sendria

Sendria (formerly MailTrap) is a SMTP server designed to run in your dev/test environment, that is designed to catch any email you or your application is sending, and display it in a web interface instead of sending to real world.

blackhole

Blackhole is an MTA written on top of asyncio, utilising async and await statements that dumps all mail it receives to /dev/null.

postern-client

Self-hostable email for humans and agents on Cloudflare: send, receive, search, MCP, IMAP, and webmail. Identity-bound credentials (v1.4).

smtp-user-enum

SMTP user enumeration via VRFY, EXPN and RCPT with clever timeout, retry and reconnect functionality.

sendtomail

Free SMTP email sender, using virtual email.

python-gmail

Automatically Send Gmail with SMTP Server.

lathermail

SMTP Server with API for email testing inspired by mailtrap and maildump

fastsmtp

SMTP-to-Webhook Relay Server - Async, multi-tenant, with DKIM/SPF validation

fastsmtp-cli

SMTP-to-Webhook Relay Server - Async, multi-tenant, with DKIM/SPF validation

mail2beyond

A Python based SMTP server package and CLI that redirects incoming SMTP messages to upstream APIs like Google Chat, Slack and more!

smtp-faker

Smtp server for development

mail2mongo

Simple SMTP daemon which save incoming emails to MongoDB