GMail for email alerts?

yeah, this doesn’t work anymore, I have the following set, with our static IP the same

Allowed Senders: Only addresses in my domains
Only accept mail from the specified IP addresses: ON
Allowed IP addresses: Our Office
Require SMTP Authentication: OFF
Require TLS encryption: OFF

this isn’t working anymore, switching to credential required seems to cause an error with saving in ‘Secrets’.
Failed to store the secret (/admin/emailnotifications/PrimaryUsername) due to an unexpected error. Please see Server's application log for further information

I found this issue below and fixed this

./deadlinecommand.exe secrets ListAllMachines Admin "*" "*"
./deadlinecommand.exe secrets GrantKeyAccessToServer Admin defaultKey 12-34-56-...
./deadlinecommand.exe secrets PutSecret Admin /admin/emailnotifications/PrimaryUsername "Primary email username"
./deadlinecommand.exe secrets PutSecret Admin /admin/emailnotifications/PrimaryPassword "Primary email password"

I think the issue was from 2FA

Adding an option here
https://myaccount.google.com/apppasswords
and it still doesn’t work, with SSL/TLS auth on or off

I’ll investigate further when I get some free time

Damn this is confusing, I’ve turned it all off again and now it’s getting mail through again…

smtp-relay.gmail.com
antg@***.com
25
SSL (OFF)

check the Google Admin settings that Douglas posted are set, and give it a couple of mins before testing again