Re: messages chopped in half

>>"svref" == David Morse <svref-/[email protected]> writes:

> My mail flow, if I remember it right:
> yahoo ---> Yosucker ---> localhost:/var/spool/mail/dm ---> pop3d -----> Mozilla

Is this really safe?

From a quick look at the YoSucker code, it seems like it is doing a
flock call on the mail spool file itself (/var/spool/mail/dm in this
case).  I think sendmail actually locks a file with a '.lock' at the
end.  At least that's what the 'movemail' command that comes with
emacs does.  Plus, some versions of sendmail don't use flock, and some
systems don't use sendmail, so getting this right doesn't seem that
easy.  If sendmail is trying to write the file while YoSucker is also
trying to write it, or your mail client or pop server is reading the
file while YoSucker is writing it, mail can get lost or truncated.

I don't tend to trust file locking with sendmail in any case.  What I
do is set PIPE=1 in the config file, and set OUTFILE to a script which
basically looks like:

#!/bin/sh
/usr/bin/spamc -f | /usr/sbin/sendmail -oi myname-G/[email protected]

The spamc is there because I'm using spamassassin; if you aren't, you
could get rid of all up to and including the '|'.

Of course, you should test the sendmail command by itself first to
make sure it works.



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