Another use case: rancid also sends emails to e.g. rancid-admin-core@ which should reach the owner instead

A different but related solution by @Kormat would be to disable/blackhole emails altogether

In T296373#7529599, @fgiunchedi wrote:

A different but related solution by @Kormat would be to disable/blackhole emails altogether

re: this I think it makes sense to keep the SMTP listener and blackhole via exim configuration. My understanding is that we need to have a router as the first entry:

blackhole:
  driver = redirect
  data = :blackhole:

To achieve that it seems to me we have at least the following ways:

• expand exim4 class/profile with a "blackhole" config option, and add conditionals to the existing configs
• introduce a whole new exim4 configuration template with the blackhole enabled and instruct pontoon to use that

Looping in @herron for opinion/guidance (but everyone is welcome to comment/suggest of course)

Change 743207 had a related patch set uploaded (by Filippo Giunchedi; author: Filippo Giunchedi):

[operations/puppet@production] profile: add exim4 blackhole configuration

https://gerrit.wikimedia.org/r/743207

Change 743207 merged by Filippo Giunchedi:

[operations/puppet@production] profile: add exim4 blackhole configuration

https://gerrit.wikimedia.org/r/743207

Change 745489 had a related patch set uploaded (by Filippo Giunchedi; author: Filippo Giunchedi):

[operations/puppet@production] pontoon: default to email blackhole

https://gerrit.wikimedia.org/r/745489

Change 745489 merged by Filippo Giunchedi:

[operations/puppet@production] pontoon: default to email blackhole

https://gerrit.wikimedia.org/r/745489