scott.postfixscottrix.co.uk
Date: Fri Feb 01 2008 - 08:46:20 CST

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Hi

I am having a problem sending a Dos (CRLF) text file from Linux to Windows
as an attachment (mimetype = text/plain, encoding = 7bit). I am using mutt
as my email client and postfix (2.4.5) as my MTA. When the file is
received the CRLF has been replaced by CRLFCRLF, if I send the same file to
myself (on Linux) then the CRLF line endings have been replaced with LFLF.
Creating a double line spacing effect.

To try to narrow down the problem I replaced the MTA that mutt uses with a
bash script to dump the file out to a log. This log showed that the
message still contained just one CRLF line ending on each line.

I then ran tcpdump so monitor the outgoing smtp connect that postfix was
making. This showed that the line ending had changed from CRLF to CRCRLF.
I am guessing that something somewhere is changing the LF at the end of the
lines to CRLF despite the fact that each line already contains this
combination.

I am not sure where to go from here to find out what is going on, any help
would be appreciated. If you require anymore information please let me
know.

Thanks

Scott.

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