Dovecot: IMAP, POP3 & SASL Auth Server (Alpine Linux)

dependabot[bot] 2701d00323 Bump docker/setup-buildx-action from 3.6.1 to 3.7.1 (#96)		hai 1 mes
.github	2701d00323 Bump docker/setup-buildx-action from 3.6.1 to 3.7.1 (#96)	hai 1 mes
CHANGELOG.md	0d596b595c release v1.3.0	%!s(int64=3) %!d(string=hai) anos
Dockerfile	e1ad06a4c2 Bump alpine from 3.20.2 to 3.20.3 (#94)	hai 2 meses
Makefile	01fe5a6104 added makefile for image building, pushing & tagging	%!s(int64=3) %!d(string=hai) anos
README.md	f55954105e readme: added links to dovecot docs for individual services	%!s(int64=4) %!d(string=hai) anos
docker-compose.yml	68576a9d6d mount ssl dir	%!s(int64=5) %!d(string=hai) anos
socat-package-log.url	d3ad0decc1 upgrade alpine base image from v3.17.3 to v3.18.0 including upgrade of dovecot packages from v2.3.20-r7 to v2.3.20-r10 & socat package from v1.7.4.4-r0 to v1.7.4.4-r1 (see below)	hai 1 ano

dovecot ✉️ 🐳

Dovecot: IMAP, POP3, LMTP, SASL Auth & ManageSieve Server

https://www.dovecot.org/

Usage

docker run --name dovecot \
    -p ... \
    -v $PWD/dovecot.conf:/etc/dovecot/dovecot.conf:ro \
    fphammerle/dovecot

Postfix SASL Auth Setup

http://www.postfix.org/SASL_README.html#server_sasl_enable

# dovecot.conf

auth_mechanisms = plain login

passdb {
  # https://wiki.dovecot.org/AuthDatabase/PasswdFile
  # doveadm pw -s BLF-CRYPT -u user -p password
  driver = passwd-file
  args = username_format=%n /etc/dovecot/passwd
}

service auth {
  # https://wiki.dovecot.org/Services#inet_listeners
  inet_listener auth {
    address = *
    port = 12345
  }
}

# postfix main.cf

smtpd_sasl_auth_enable = yes
smtpd_tls_auth_only = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = inet:dovecot:12345

smtpd_relay_restrictions = [...], permit_sasl_authenticated, reject_unauth_destination

Deliver Mail From Postfix to Dovecot via LMTP

https://wiki2.dovecot.org/HowTo/PostfixDovecotLMTP

README.md

dovecot ✉️ 🐳

Usage

Postfix SASL Auth Setup

Deliver Mail From Postfix to Dovecot via LMTP