Linefeeds in Email Headers

[eluser]Derek Jones[/eluser]
I honestly have no idea what qmail might be doing with the emails after CI hands it off. If I had to guess, based on things we've seen on some servers (particularly eastern european), the SMTP server is trying to force compliant line breaks by blindly converting either \r or \n to \r\n, which obviously can lead to problems of having double or even quadruple line breaks littered in your email. My recommendation would be to try a different SMTP server, or preferably sendmail, so you can eliminate any issues in the email library or your application. Or check with your qmail administrator to help you examine the issue and see if there is any post-hand-off conversion taking place, and how to either work around it or disable it.