XPost: alt.comp.software.thunderbird   
   From: ahk@chinet.com   
      
   R.Wieser  wrote:   
      
   >Adam,   
      
   >>I use the email address from the ISP for service-related messages.   
   >>I have addresses used for specific purposes and I use SMTP servers   
   >>associated with the respective inbox. The connection is made to   
   >>the Submit server (port 587) per RFC 3676 instead of the SMTP port   
   >>(25).   
      
   Wrong RFC   
      
   >Thanks for confirming that SMTP traffic is not, by DPI boxes or otherwise,   
   >blocked in an ISPs network or at its border.   
      
   port 587 uses STARTTLS, unencrypted connection at the start, with   
   encryption negotiated.   
      
   >Another "by the way" : did you know that one of the email related RFCs   
   >specifies that an email server should accept *all* SMTP requests, even from   
   >people who are unknown to it ?   
      
   Because filtering at the server communication level was not anticipated.   
   I have been blocked at client and server levels when I get caught up in   
   some policy change.   
      
   >. . .   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)