[sylpheed:31396] Re: Sylpheed establish new connection for every mail

Colin Leroy colin at colino.net
Thu Jun 7 00:48:52 JST 2007


On 06 June 2007 at 12h06, Ricardo Nabinger Sanchez wrote:

Hi, 

> > Sylpheed is establishing for every a mail a new connection, which  
> > costs a lot of time by sending a big number of mails.
> > Do I have any chance to tell sylpheed, to use only one SMTP
> > session for every server?  
> 
> But that's a limitation of the SMTP protocol IIRC, not Sylpheed's
> fault.

It's Sylpheed's fault. the SMTP protocol allows mails to be sent
batched:

* Connecting to SMTP server: paperstreet.colino.net ...
[17:47:34] SMTP< 220 paperstreet.colino.net ESMTP Postfix
[17:47:34] ESMTP> EHLO localhost.localdomain
[...]
[17:47:34] ESMTP> AUTH LOGIN
[17:47:34] ESMTP< 334 VXNlcm5hbWU6
[17:47:34] ESMTP> [USERID]
[17:47:34] ESMTP< 334 UGFzc3dvcmQ6
[17:47:34] ESMTP> [PASSWORD]
[17:47:34] ESMTP< 235 Authentication successful
[17:47:34] ESMTP> MAIL FROM:<colin at colino.net> SIZE=2084
[17:47:34] SMTP< 250 Ok
[17:47:34] SMTP> RCPT TO:<colin at colino.net>
[17:47:34] SMTP< 250 Ok
[17:47:34] SMTP> DATA
[17:47:34] SMTP< 354 End data with <CR><LF>.<CR><LF>
[17:47:34] SMTP> . (EOM)
[17:47:34] SMTP< 250 Ok: queued as D41088B434
* Mail sent successfully.
[17:47:34] ESMTP> MAIL FROM:<colin at colino.net> SIZE=2070
[17:47:34] SMTP< 250 Ok
[17:47:34] SMTP> RCPT TO:<devnull at colino.net>
[17:47:34] SMTP< 250 Ok
[17:47:34] SMTP> DATA
[17:47:34] SMTP< 354 End data with <CR><LF>.<CR><LF>
[17:47:34] SMTP> . (EOM)
[17:47:34] SMTP< 250 Ok: queued as EE1288B4CF
* Mail sent successfully.
[17:47:34] SMTP> QUIT
[17:47:34] SMTP< 221 Bye
-- 
Colin
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