I have been working on a migration from exchange 2007 to 2013. So far I have managed to work through the process slowly reading guides on the internet. I have an issue that has developed. I'm getting this error when sending to a domain.
"Message rejected due to content restrictions
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept email from certain senders, or another restriction may be preventing delivery"
I read a post to test with mxtoolbox and this is what I got.
https uuuuu.com The underlying connection was closed: An unexpected error occurred on a send. (https://uuu.com
) More Info
dns uuuuu.com SOA Refresh Value is outside of the recommended range More Info
dns uuuu.com SOA Expire Value out of recommended range More Info
spf uuuu.com A Valid SPF Record was not found More Info
smtp mail.uuuuu.com Warning - Reverse DNS does not match SMTP Banner More Info
smtp mail.uuu.com 7.878 seconds - Warning on Transaction Time
What do you guys think? I'm curious how to resolve the DNS does not match SMTP. do I really need to contact my isp to resolve this warning?