SMTP/POP3 Issue

Please give some more details e.g. to which email id you are trying to sent the mails. your smtp and pop settings etc.

Please have a read of my article and check your server configuration, reverse DNS and see if you are Blacklisted anywhere:

https://www.experts-exchange.com/Software/Server_Software/Email_Servers/A_2427-Problems-sending-mail-to-one-or-more-external-domains.html

alanhardisty, already cheked the id is not blacklisted, smtp, pop3 settings are usual. DNS is functioning,

alanhardisty, already cheked the id is not blacklisted, smtp, pop3 settings are usual. DNS is functioning,

Can you please post your domain name and sending IP Address and I will take a look to make sure you are configured properly.

I will hide the domain name / IP Address to protect your identity.

Alan

Alan If possible please tell few troubleshooting steps. I have already checked, I am getting ndr messages. I shall try the steps reason not posting domain name and ip because it can cause issues.

thnx