Issue Accessing outside mails to lan users from Microsoft Exchange Server

[jaffarsathiq]

Issue Accessing outside mails to LAN users from Microsoft Exchange Server can send the mails but cant receive  pls tel me the rules and port forwarding for Microsoft exchange server .

[almabes]

Your question is not answerable without more information.  Specifically, what version of Exchange?  What are you trying to provide access to?  IMAP, POP, OWA, RPC over HTTPS?

I can assist, or do it for you, but I charge for my time.

[almabes]

Ok…I just reread your post.
You need to allow SMTP inbound from the Internet.

There are probably other configuration items you need to complete as well.

[doktornotor]

This ain't MS support forum. => https://social.technet.microsoft.com/Forums/