TestFlight invite not received

My team is helping test an app for a partner and we're having issues with one of the testflight invites never being received. We've provided the main Apple ID email (@gmail) and the alternative apple id (@me) and they've deleted and resent a dozen times. Checked junk mail, and everything, but still no invite showing up. The other invites seem to go through without problems (one is @gmail and one is @his).

Has anyone else run into this issue?

Yep attempting to add new users in "Users and Access" is not working. Users are not receiving the email.

Also not working, have tried multiple colleagues sending me an invite.

We noticed the same issue today. Any solution

This is still or again an issue? We are not receiving any invitation mails (even for totally new testers).

Same issue here.

TestFlight invite not received
 
 
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