Hi, I have trouble setting Thunderbird with my email: info@sakisx.heliohost.org   On the cpanel it says I can use Secure SSL/TLS Settings but the only settings that work are :   Incoming  IMAP   ,port 143	 ,SSL= STARTTLS    ,Authentication= NOT Encrypted (normal) Outgoing SMTP  ,port 587	 ,SSL= STARTTLS    ,Authentication= NOT Encrypted (normal)   Are these settings "safe"?    Also another thing that puzzles me is which name server I must choose with the above settings. The cpanel mentions for SSL the "stevie.heliohost.org" and for the nonSSL "mail.sakisx.heliohost.org". Which one should I use?    After thunderbird complained for SSL certificate and had to made "exception" I send a test mail to hotmail and gmail account. But the hotmail message was not send:   From info@sakisx.heliohost.org I got:   ""This message was created automatically by mail delivery software.   A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:     XXXXXXXXXXX@hotmail.com     SMTP error from remote mail server after MAIL FROM:&--#60;info@sakisx.heliohost.org&--#62; SIZE=XXXX:     host mx2.hotmail.com [X.X.X.X]: XXX XX-XXX (XXXXXX-XXXXX) Unfortunately, messages from X.X.X.X weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.""