[03:55] <arraybolt3> um, how on earth did Postfix become a dependency of something on a system that has just the base Ubuntu packages, Ubuntu dev tools, IceWM, and QTerminal installed?
[03:56] <arraybolt3> I don't want to run a mail server on my package builder VM 😭
[04:32] <JackFrost> apt list '?and(?installed, ?recommends(~npostfix))'  IIRC.
[04:34] <arraybolt3> `Listing... Done`
[04:34] <arraybolt3> no output
[05:26] <JanC> some stuff (mostly servers?) depends on or recommends a mailserver to send mails when errors occur
[05:27] <JanC> maybe some dev tools too (e.g. to send patches to LKML...)
[05:30] <JanC> it would not depend on postfix directly but on a metapackage (mail-transport-agent or something like that)
[05:30] <JanC> something like nullmailer should satisfy that too
[05:31] <JanC> or lsb-invalid-mta
[05:32] <JanC> that one will just return an error every time something tries to send an e-mail  :)
[05:35] <JanC> so: apt list '?and(?installed, ?recommends(~nmail-transport-agent))'
[05:35] <JanC> arraybolt3: ^
[05:40] <JanC> e.g. buildd depends on an MTA
[12:40] <jbicha> arraybolt3: bug 2054908 😭
[12:40] -ubottu:#ubuntu-devel- Bug 2054908 in ubuntu-release-upgrader (Ubuntu) "gpg-wks-server pulls in postfix" [High, New] https://launchpad.net/bugs/2054908
[12:47]  * JanC wonders if it makes sense to install lsb-invalid-mta by default...
[17:24] <arraybolt3> jbicha: aha, lucky us :-/
[17:24] <arraybolt3> anyway I just set it to "local-only" mode and let it install.
[18:16] <jbicha> well go ahead and apt purge it afterwards then