Email issues with 7.2 RC

So just got of the phone with Synology.

My new users on the DS1821+ are not receiving an email from the server (with the password and a welcome message). DSM 7.2 RC

So I find out the issues is the settings for DNS. I was using; and changing it to works. I’m using a gmail account for the outbound traffic of the NAS.

So, i just thought i mention this, incase someone else has a similar issue.

Thanks for the heads up. Email quit working, as well as Pihole, when I went to 7.2 but changing he DNS resolved that.