Any ideas why email invites are not coming through

[Blair Forbes]

I have been attempting to invite users to our service desk, but for some reason they are not coming through. 

Is there a way to solve this without raising a support ticket to clear invites?

Thanks

[Andy Heinzer]

Hi @Blair Forbes 

I took a closer look at your domain and found most users are getting bounced messages as an SMTP reply.  I found bounce messages like this one:

554 5.4.4 [internal] Domain Lookup Failed

and this one:

421 4.4.4 [internal] Domain Does Not Resolve

I then used a command to try to lookup your domain's DNS MX records:

dig example.com MX

Replace the example.com with your domain.  However the output does not appear to show an Answer section that should indicate the DNS value of your mail server.  I would recommend that you reach out to your mail and DNS administrators in order to correct this.  I can clear the suppressions from our side, but without updated DNS MX records that our services can retrieve, this same problem will continue.

[Mohanraj Thangamuthu]

Hello, Good day. We need the email address of the user who is not receiving, so that we can check the logs from our end. I would recommend for a support request, so that you can share the email with our team.