Redmine

We're experiencing this problem, but I'm suspicious it's related to the WYSIWYG functionality. Redmine seems to assume plain text entry and a plain-to-HTML filter on output, and when you enable WYSIWYG editing, the system assumes the content will be HTML and does not run it through a plain-to-HTML filter. When we turned on the WYSIWYG after a few weeks of use, all existing content showed up as described here (without any P/BR breaks).

So I think Redmine is receiving the e-mails, normalizing to a plain text format, but since we have the WYSIWYG on, that plain text is not sent through the plain-to-HTML filter. If that's the case we could either allow HTML e-mail received to be saved directly as markup in Redmine, or we could always apply a plain-to-HTML filter to handle old plain text content added by e-mail/before WYSIWYG was enabled. E.g. Markdown permits P elements to passthrough as is.

We've confirmed that disabling the WYSIWYG eliminates the problem, so I'm guessing the fix will be having the WYSIWYG plugin run incoming e-mail content through something like email_content.gsub(/\n/, '<br />')

Hi,

We have the similar issue on Redmine 1.4.

In our case, it caused by HTML email parser in Redmine 1.4 is incompatible with the latest Microsoft Exchange server. To fix our issue, we modified mail_handler.rb file likes below, and then it works well.

Index: mail_handler.rb
===================================================================
--- mail_handler.rb     (revision 9776)
+++ mail_handler.rb     (working copy)
@@ -346,7 +346,8 @@
     if plain_text_part.nil?
       # no text/plain part found, assuming html-only email
       # strip html tags and remove doctype directive
-      @plain_text_body = strip_tags(@email.body.to_s)
+      # @plain_text_body = strip_tags(@email.body.to_s)
+      @plain_text_body = strip_tags(@email.body.to_s.gsub!(/<o:p>/, '<o:p>&nbsp;').gsub!(/<br>/, "\n").gsub!(/&nbsp;/, "\n"))
       @plain_text_body.gsub! %r{^<!DOCTYPE .*$}, ''
     else
       @plain_text_body = plain_text_part.body.to_s

Hope it can help you to resolve issues

Regards,

Yang

Try #16962 patch.