Why can't email to some domains be sent from inmotion smtp server? Using the same email recipient with another smtp server works fine
I'm trying to send an email using inmotion smtp server but the email isn't routed. I immediately get the following message:
all hosts for 'domain' have been failing for a long time (and retry time not reached)
Nevertheless, if I send the email using another smtp server (same email address sender) the message arrives without any problem.
I'd recommend you first check your mail logs. That way, you'll get a better idea of where the problem is originating on the recipient or server side. Then further troubleshooting may proceed from there.