Re: New line character after Content-type: causing SquirrelMail to display messages incorrectly
Adrian Hada <adrian.hada <at> gmail.com>
2013-02-17 19:53:36 GMT
I finally managed to connect the problem to HMail's IMAP responses. I
posted the problem there.
Thanks for the help and for the excellent piece of software. I've only
used Squirrelmail for the past four years but I still haven't
encountered any serious problems - I guess this HMail issue is just
another example of how reliable SM is!
On Sat, Nov 10, 2012 at 11:53 AM, Adrian Hada <adrian.hada <at> gmail.com> wrote:
> Thank you for your answer. I forgot to add some details to the last message
> so here's some additional info.
> The e-mail I had sent was HTML plus a txt file attachment (a readme.txt I
> added trying to debug). I wasn't able to reproduce the problem using plain
> text e-mails (actually, most people in my organization still choose to send
> plain text and only a few go for HTML - this is why I was very slow in
> finding out there was a problem). Yesterday I found out that sending message
> receipts fails with the same problem - the text does not appear, but a .dat
> attachment gets added to the e-mail with the message contents from the new
> The reason I pointed out the newline was that I was messing around with the
> original messages' contents (as stored by HMail) and removing the newline
> character solved the problem. Adding it broke the display again. Using a
> logfile which posted headers as they were processed, I was able to track the
> newline being added by the foldline function.
> On Sat, Nov 10, 2012 at 8:41 AM, Tomas Kuliavas
> <tokul <at> users.sourceforge.net> wrote:
>> Adrian Hada wrote
>> > I encountered a problem using SquirrelMail which I wasn't able to solve
>> > using regular means or find in the mailing lists so far. The problem
>> > goes
>> > like this - some HTML e-mails are missing contents with the relevant
>> > parts
>> > appearing as ATT-n.dat attachments.
>> > I was able to track the problem to the MIME header of the e-mail, namely
>> > to
>> > there being a new line character after Content-Type for
>> > multipart/alternative. For example, this e-mail header (I removed the
>> > domain info):
>> > ....
>> > I was able to track this issue to the foldline function in the deliver
>> > class - namely, the long Content-type line causes foldline to do a fold
>> > before the soft limit and sends the rest of the line to the new one.
>> > From
>> > there on, I guess the boundary is not correctly interpreted. As a
>> > workaround, I added a preg_match test so that foldLine is not called for
>> > Content-Type lines.
>> > My knowledge of MIME is limited so I can't figure out if the problem is
>> > in
>> > the message creation (the newline shouldn't be there) or reception
>> > (newline
>> > should be ignored) and I'd prefer to rely on something better than my
>> > quick-fix skills to solve the issue.
>> > Further info:
>> > - SquirrelMail version - *1.4.23 [SVN] (config file is 1.4.20)*
>> > - PHP version 5.3.18
>> > - Web server IIS 6.0
>> > - HMail Server 5.3.3
>> > - Windows 2003
>> > - Installed Manually
>> > - Browsers - tried multiple
>> > Thanks for your help.
>> email has two content-type headers. if it is reply, check headers in
>> original email. check, if you can reproduce it without html_mail plugin
>> messing with message structure.
>> newline after header tag is allowed, if header value+header tag does not
>> into recommended header line length.
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> Adrian Hada
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