I am new in domain system, i set up domain controller myself at my office, every thing was working fine, but after 3 or 4 days outlook was unable to receive email on client machines. the only way i find was to enter ip address of my domain (i have purchased and hosted from third party) in outgoing SMTP Server address. emails are receiving well without ip but only error is at receiving.
i dont know where i am wrong. this is annoying too much.
plzzz rsolve my issue.