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Let’s do Postfix slowly and properly – Part 11: pflogsumm

As much I have enjoyed looking at Postfix logs over the past couple of weeks, I don’t really want to keep poring over them on a daily basis…

  • Post date August 30, 2020
  • Tags let's do postfix again, logs, pflogsumm, postfix, sendmail

Let’s do Postfix slowly and properly – Part 10: Restricting access

When I see what people are trying to do to my poor server, I want to reach for some kind of cyberweapon. That guy, zap. That IP, zip.…

  • Post date August 22, 2020
  • Tags access, anvil, let's do postfix again, postfix, restrictions

Let’s do Dovecot slowly and properly – Part 4: Filtering with Sieve

Sieve is a filtering plugin for Dovecot’s LMTP service. Filtering applies general rules to incoming mail: Move this here, mark this read, flag this as spam, etc. Simple…

  • Post date August 20, 2020
  • Tags dovecot, let's do dovecot, lmtp, managesieve, sieve

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 Postfix slowly and properly – Part 8: PTR and SPF records

Incoming and outgoing mail have tended so far to generate separate topics and posts in this series. But reducing spam and not getting taken for a spammer are…

  • Post date August 12, 2020
  • Tags dns, let's do postfix again, postfix, ptr, spf

Let’s do Postfix slowly and properly – Part 7: Encryption

One of the many ways that talk of encryption trips me – and probably others – up is not just the maths and the intricacies of encryption technology.…

  • Post date August 12, 2020
  • Tags encryption, let's do postfix again, postfix, smtp, starttls

Customizing Midnight Commander

Midnight commander is one of those nifty ncurses tools I use once in a while but never really enough to ever have considered spending time mucking about with…

  • Post date June 30, 2020
  • Tags customization, mc, midnight commander, true colors

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