The system and versions:
I am running ODK Central on Linux Ubuntu 18.04 LTS.
ODK Central versions: client (v0.8.0), server (v0.8.1).
The problem is this:
Users are not receiving emails anymore. I noticed this after trying to reset a user's password and creating an account. Users would receive mail just fine once I launched Central. It would be marked as spam on some mail servers, and as normal mail on others.
Now they no longer receive emails.
What have I tried:
I tried using the Configuring DKIM guide, and I ran into 2 issues.
i) Instruction 4 is pretty unclear, which locations are being referred to for the TXT DNS records. I assume on a Nameserver perhaps?
ii) Instruction 5, the command 'docker-compose build' results in a 'mail uses an image, skipping' error. So then I tried removing the mail server and building again, but it results in the same error.
Please help with resolving this.