Re: Tracing of SMTP session?

[David Pirrò <david.pirro@gmail.com>]

At Wed, 19 Feb 2014 00:34:15 +0100,
Herbert J. Skuhra wrote:
> 
> On Tue, 18 Feb 2014 15:20:52 +0100
> David Pirrò wrote:
>  
> > Thank you for your reply!
> > 
> > At Tue, 18 Feb 2014 21:10:29 +0900,
> > Masaru Nomiya wrote:
> > > 
> > > > Since a few days I have problems sending emails with attachments (pdf,
> > > > small ones ~ 1.0M) from another mail address. When I try, emacs
> > > > hangs. After some minutes I have to press C-g and quit... I have no
> > > > problems sending attachments from this (gmail) address.
> > > 
> > > > The problem is that I cannot say where the problem is ... :) I don't
> > > > know where it hangs. Since I have to C-g no trace of the smtp session
> > > > is created. I would be nice to have some trace of what is happening
> > > > and at what point everythings hangs up. Having that information would
> > > > help to communicate with my sysadmin.
> > > 
> > > > Is ther a way to get such "trace"?
> > > 
> > > (setq smtp-debug-info t)
> > > 
> > Actually I don't have a variable named like that. Probably you meant
> > smtpmail-debug-info which is set to true here in my configuration (as
> > well as smtpmail-debug-verb). But as far as I understand this controls
> > if debug info is printed in the buffer *trace of SMTP session to
> > <somewhere>* which in turn is not printed if I have to do C-g.
> 
> The variables smtpmail-debug-info and smtpmail-debug-verb are part of
> smtpmail.el which I think is not used by wl. smtp-debug-info is unused
> too, but there is smtp-debug (flim/smtp.el).
> 
> If you use '(setq debug-on-quit t)' you should get a backtrace when
> Emacs hangs and you press C-g. To get a more readable output you
> have to load *.el files instead of *.elc.

Thank you, that helped!

So, now I found out where the problem is. 

I automatically sign my messages when using that account (PGP sign C-c
C-x v, only sign no message encryption). Now it turns out that
whenever I sign a message with an attachment (pdf file ~1.0MB base64
encoding) wanderlust hangs. If the message is not signed everything
works fine. If I send a message with only text, no attachment and sign
it, everything works fine.

I would like to sign my messages even if they have attachments...

Any ideas? 

Best wishes,

David