I can create a new customer and hosting spaces without issue. The issue is the new email addresses cannot receive emails from outside the server. The new domain can email each other. The other domains on the server can send and receive email to this domain. But anything from outside, Hotmail, gmail etc fail with:
Remote Server returned '550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup'
Have you verified the mx records (public) are pointing to the right servers?
Yes the NDR is generated by my server.
That sounds weird, as exchange doesn't got a different internal or external smtp list.
Do you use any filter?
Other things that might cause this would be multiple AD servers where they aren't in sync.
Dear Marco,
I facing the same issue while installing the new exchange server 2016 on windows server 2016. no incoming email for the mailbox created using SolidCP. if i manually use ECP to create new email account, the email able to received.
i tried both CU12 and CU11 also same problem. May i know what is the CU version that tested working with SolidCP ?
Remote Server returned '< #5.1.10 smtp;550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup>'
