Mailserver Setup

[fabianhauser]

• Postfix mail agent
• Make sure, that only IPs from docker swarm can send mails.

[dbrgn]

As an alternative, I would at least consider to use a service like https://www.sparkpost.com/pricing/ (15'000 E-Mails per month for free without any mailserver admin hassle).

[mattbaumann]

Thanks for the great idea. We really appreciate. However, we decided to give own email-server a try. If the local email-exchange does not work as expected we will reconsider that option too.
Happy coding 😄

[fabianhauser]

I think the easiest solution for this is to set up the MTA directly on the host.
We have to install one there either way (to collect system mail, e.g. for unattended updates), so we might also use that one for all the deliveries.