We tested on next order:

• Is “This server requires a secure connection (SSL)” checked? It wasnt so its ok
• If “My server requires authentication” checked? It wasnt so its ok
• Lets loog at the windows firewall – is port 110 blocked? It wasnt so its ok
• Is incoming mail server set ok? It wasnt so its ok

Now it time to try something more:

Next we tried to reset adsl connection bot also wasn’t working.

Lasst try was cheching if connection to server on port 110 was working.

We tested it like this: Went to Start -> run on windows start menu. Enter “cmd” and then enter “telnet domain_name 110“. If connection is successfull we get something like: “+OK Welcome to MailEnable POP3 Server <7648.5874843@slohostweb>”

And prt-scr of the situation:

cmd prompt windows telnet port 110

Telnet to mail server successfull

So we got ok response, but or client didn’t -He hot something like… “AVG proxy server” so I knew something was wrong with theirs antivirus so he disabled AVG antivirus and bing – mails are working again!!!