Can't access my emails internally

[franky29]

Hi All,
Not sure if this is the proper place for this post but here is my issue.

Sending out using SMTP works but incoming messages from IMAP are not. The only way I can get the messages to come in is if I modify my PC's host file to have internal address point to the fqdn of the DDNS I have.
i.e. 192.168.1.5 myemailserver.com

The issue I have with this is I have to comment it out when I am outside the network to receive emails.

Let me know what other information you require and I will get it to you asap.

Thanks in advance for all of your help.