Caesonia - OpenBSD Email Service.

Root your Inbox with a free-email alternative OpenBSD Email Service.

https://github.com/vedetta-com/caesonia

#mail

Configuring mail server on OpenBSD 6.5.

This guide is mostly notes for myself rather than something readable, but it may be useful anyway. It contains an example of working configuration for OpenSMTPD, SpamPD, SpamAssassin, DKIM Proxy and Dovecot with Sieve support on OpenBSD...

https://ch1p.io/blog/11/

#mail #opensmtpd

OpenBSD Mail Smarthost Runbook. #opensmtpd #mail

OpenBSD and mail server setup.

Cool articles from Gilles Chehade about mail server setup.

https://poolp.org/posts/2019-08-30/you-should-not-run-your-mail-server-because-mail-is-hard/

https://poolp.org/posts/2019-09-14/setting-up-a-mail-server-with-opensmtpd-dovecot-and-rspamd/

#mail #opensmtpd #rspamd

LPE and RCE in OpenSMTPD (CVE-2020-7247).

We discovered a vulnerability in OpenSMTPD, OpenBSD's mail server. This vulnerability is exploitable since May 2018 (commit a8e222352f, "switch smtpd to new grammar") and allows an attacker to execute arbitrary shell commands, as root.

https://www.openwall.com/lists/oss-security/2020/01/28/3

#opensmtpd #mail

An OpenBSD E-Mail Server Using OpenSMTPD, Dovecot, Rspamd, and RainLoop.

This tutorial demonstrates a full-featured email server running on OpenBSD using OpenSMTPD, Dovecot, Rspamd, and RainLoop. OpenSMTPD is the default mail server for OpenBSD. Choose a Vultr Compute Cloud instance with plenty of storage for the expected number of users.

https://www.vultr.com/docs/an-openbsd-e-mail-server-using-opensmtpd-dovecot-rspamd-and-rainloop

#opensmtpd #mail

Setting up an email server in 2020 with OpenSMTPD and Dovecot

Another one link... https://prefet.ch/blog/2020/email-server/

#mail #opensmtpd #dovecot

Install Roundcube on OpenBSD.

This post is about installing Roundcube on OpenBSD. The webserver for Roundcube is httpd(8) together with PHP and MariaDB installed from packages(7).

https://www.bsdhowto.ch/roundcube.html

#mail #roundcube

Missing Cron Email When Restarting smtpd

I have a cron job that renews an SSL certificate from Let's Encrypt, and then restarts the smtpd daemon so that the new certificate is picked up. This all works fine--as proven by both the presence of a new, valid cert on disk, and smtpd successfully restarting--but cron never sends an email with the output of the job. What gives?

https://www.packetmischief.ca/2021/02/03/missing-cron-email-when-restarting-smtpd/

#cron #mail #opensmtpd

OpenBSD Mail Server (3 Part Series).

- Rspamd installation and OpenSMTPD configuration on it on OpenBSD
- Rspamd monitoring with OpenBSD relayd
- DKIM Migration: Rpamd instead of DKIMproxy out on OpenBSD / OpenSMTPD

#mail #rspamd

Filtering spam using Rspamd and OpenSMTPD on OpenBSD.

I recently used Spamassassin to get ride of the spam I started to receive but it proved to be quite useless against some kind of spam so I decided to give rspamd a try and write about it. rspamd can filter spam but also sign outgoing messages with DKIM, I will only care about the anti spam aspect.

https://dataswamp.org/~solene/2021-07-13-smtpd-rspamd.html

#mail #rspamd

OpenSMTPD on the Local Network.

One of the many great things about OpenBSD is that it comes with OpenSMTPD by default, allowing my servers to communicate with themselves and each other via the SMTP protocol. This is used to send insecurity reports, failed cron jobs, et cetera to various users on the system. However, I don’t want to have to check each machine’s mail spool to see if there are any messages I need to act upon. I’d much rather have a central mail server to collect all these messages so that I have a single place to check...

https://josephchoe.com/2021/12/24/opensmtpd

#opensmtpd #mail

Mail Server Hosting on OpenBSD.

Mail server is an everyday requirement for everyone. Why trust and rely on 3rd party mail servers? There are many reasons to host your mail server today, in just one sitting! The following section mentions the significant benefits of hosting a mail server...

https://serhanekici.com/005-mailserver-openbsd.html

#opensmtpd #mail

Excision Mail.

Fullstack, security focused mailserver based on OpenSMTPD for OpenBSD.

https://excision.bsd.ac/

#opensmtpd #mail

Doing stupid things (with packets and OpenBSD).

Several articles about OpenBSD on server: https://doing-stupid-things.as59645.net/

#system #network #mail