Unable to receive mail from external domains

dinagaran2000 used Ask the Experts™
Our client  running their own web and mail servers. hosted with private IP , connected after Fortigate Firewall. Mails are working well. All of sudden past one week we are not able to receive mail from external domains. We tested the following
1. Send and receive locally ---------------------------------------- Working
2.Sending mails to external domains like yahoo, gmail---------- working
3.Receving mails from External domains like yahoo, gmail------FAILED
4.Telnet the port 25 and 110 both with public and private IP---Working
5. Checked the MX record pointing to Public ip at whois
    and private IP in the Firewall-------------------------------------Working
6. CHecked the NODE32 AV@ server for any blocked mails-- No mails blocked
7. DIsabled Microsoft Antispam update in the services of SERVER
8. Checked the Hub and Transport Roles of SERVER.
Can anyone help with solution
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®

Is the problem specifically with some domains (like Yahoo, Gmail) or with all external domains sending inbound? First thing to try is the inbound SMTP test at the bottom of this page:
Try to disable all options under "anti-spam" tab in EMC.
EMC - org config - hub transport- anti spam.
Sorry Team,
           Because of power issue , total OS itself corrupted.



Since server itself corrupted. Planning to install new server.

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial