Can't receive from GMail

tiagoespinha

Hi all,

I’m setting up a new mailcow.

I added a single domain with multiple mailboxes. I then added a number of domain aliases, all pointing to this single domain.

I’ve configured the A and AAAA records in the main domain, but didn’t change the MX record on that one just yet as I wanted to try this out with one of my aliases first.

I configured the alias according to the settings that are shown in the UI, and I can receive emails from most providers on that alias, including from Outlook. I’ve received emails from 3rd party services and so on.

But I can’t receive emails from GMail. I tried sending with my personal GMail account to one of my domain aliases, and it just doesn’t work.

What’s weirdest is that I don’t even see GMail attempting to connect to my Postfix in the logs 🙁 so pretty hard to figure out what’s going wrong.

I’ve gone as far as deleting and re-adding the MX record on the alias just to work out whether that had gone wrong, but no luck…

Any ideas what could be going wrong here? Any help is much much appreciated as I now ran out of places where to look 🙁

Thanks!
Tiago

ETNyx

In case of failure of e-mail delivery, Gmail send to sender (your gmail account) e-mail from “Mail Delivery Subsystem mailer-daemon@googlemail.com”, including basic diagnostic message, so try to look for that.

Otherwise it smells like DNS issue. You can try test the alias domain here https://internet.nl look for “Mail server(s)” to “IPv6 addresses for mail server(s)” inside you should see your MX, IPv6 and IPv4 pointing to your mailcow instance,..

tiagoespinha

Thanks @ETNyx ! It just started working on its own…!

Does seem like maybe I was a bit too impatient with GMail 😃 but I updated the DNS records about 16h ago now… and it’s usually pretty fast (and I had a very low TTL, so expected it to be quite fast too…).

But anyway… it works now!

Thanks!

ETNyx

@tiagoespinha great, glad it works out, happy mailing 😃