SquirrelMail does not send nor receive

[loadingjkr]

I can not send or receive messages internally
not from hotmail gmail or yahoo

URL https://server.tld/webmail/


EMAIL Configuration
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My DNS is very well

http://www.subeimagenes.com/img/dns-324727.png
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/usr/share/squirrelmail/config/conf.pl

viewing option 2

http://www.subeimagenes.com/img/soft-324731.png
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send or receive a message to Hotmail never arrive
and Takes 20 seconds to load
http://www.subeimagenes.com/img/xxxxxxxxxxx-324735.png


please someone help me?

[falko]

Hotmail is special, they block so many servers... Can you send to other email accounts?

Are there any errors in your mail log?

Please check if your server is blacklisted: http://mxtoolbox.com/blacklists.aspx