Exchange 2019 on premise server configured two Send Connectors. (Single Server in the domain with Mailbox and transport roles)
1 connector directly to the internet via domain mx records
2 connector to a smart SMTP host on same subnet
but I am not getting any email delivered neither to the destination nor to the local smart host ( i only keep one connector enabled at the time )
Exchange server windows firewall is disabled . I am receiving emails emails from outside to the server. I can telnet on port 25 to another SMTP sever local and on the internet
but don't have email flow from Exchange 2019 to outside or to smart host?
how can i troubleshoot it?
I would appreciate an answer from a real experts and not just simple googled links.
Are you getting any bounce back when you send email after configuring send connector?
If yes please post the error.
Do you have a firewall. If yes do you have SMTP inspection enabled in the firewall.