1.maillab / cloud-mail
TranslatedAn all-in-one email service platform powered by Cloudflare | Cloudflare Email Mail
- cloudflare-email
- cloudflare
- cloudflare-workers
+383 stars
from 14,981 · score 5.95
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
12 repositories by Attention Score · Oct 28, 2026 – Nov 3, 2026 (UTC)
2.stalwartlabs / stalwart
All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).
+280 stars
from 15,424 · score 5.64
3.Billionmail / BillionMail
BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr
+220 stars
from 15,961 · score 5.40
4.dreamhunter2333 / cloudflare_temp_email
TranslatedCloudFlare free temp domain email, free to send and receive, temporary domain mailbox, supports attachments, IMAP, SMTP, TelegramBot
- cloudflare-email
- cloudflare-pages
- cloudflare-workers
- free
+30 stars
from 12,022 · score 3.43
5.mailcow / mailcow-dockerized
mailcow: dockerized - 🐮 + 🐋 = 💕
- mailcow
- mailserver
- groupware
- sogo
- rspamd
- postfix
- +11 more
+29 stars
from 13,710 · score 3.40
6.postalserver / postal
📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail
- ruby
- smtp
- postal
- mail-server
+22 stars
from 16,896 · score 3.14
7.docker-mailserver / docker-mailserver
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.
- mailserver
- postfix
- dovecot
- ldap
- fail2ban
- +5 more
+21 stars
from 19,698 · score 3.09
8.Mailu / Mailu
Insular email distribution - mail server as Docker images
+8 stars
from 7,595 · score 2.20
9.mjl- / mox
modern full-featured open source secure mail server for low-maintenance self-hosted email
+8 stars
from 5,920 · score 2.20
10.mail-in-a-box / mailinabox
Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
+5 stars
from 15,449 · score 1.79
11.haraka / Haraka
A fast, highly extensible, and event driven SMTP server
+5 stars
from 5,628 · score 1.79
12.foxcpp / maddy
✉️ Composable all-in-one mail server.
+2 stars
from 6,117 · score 1.10