email – brokkr.net

Let’s do Postfix slowly and properly – Part 9: Using Rspamd as a spam milter

There is a reason that this part of the series didn’t happen sooner: Spam is tricky, spam fighting software setup is possibly even more so. The tools I…

Post date August 13, 2020
Tags email, let's do postfix again, postfix, rspamd, spam, spamassassin

Let’s do Dovecot slowly and properly – Part 3: LMTP

So far I have had a pretty clear division of labour between Postfix and Dovecot. Postfix accepts mail from other MTAs and puts it into my maildir. Dovecot…

Post date October 31, 2019
Tags dovecot, email, let's do dovecot, lmtp

Let’s do Dovecot slowly and properly – Part 1: PLAIN as day

This post follows up on the fifth installment in my Let’s do Postfix series. We’re not really done setting up Postfix but a) it’s about time we had…

Post date June 4, 2018
Tags dovecot, email, imap, let's do dovecot, mda

Squeezing the sponge: How to implement a buffering SMTP Handler in Python

…when he needs what you have gleaned, it is but squeezing you, and, sponge, you shall be dry again. – Hamlet One of the first things I implement…

Post date February 10, 2017
Tags buffering, email, handlers, logging, python, smtp

Let’s do Postfix slowly and properly – Part 5: Relaying from the local network

When running your own SMTP the real spam challenge is not to avoid getting targeted by spammers – it is is to avoid getting used by spammers. Mind…

Post date November 1, 2015
Tags email, let's do postfix again, postfix, relay

Let’s do Postfix slowly and properly – Part 4: Virtual domains

To reiterate what I said in the first post in our Postfix series, a virtual setup is one in which email accounts are independent of system accounts. We…

Let’s do Postfix slowly and properly – Part 3: Opening up to the outside

I promised that in this third part of the series we would finally get to make our SMTP server accessible from the outside, gettting a bit closer to…

Post date October 22, 2015
Tags email, let's do postfix again, postfix