We are seeing the same exact symptoms. In some cases, the user on the
receiving end is getting multiple (20+) copies of the same message as a
result of Exim's retrying.
So far I have not found a pattern to this problem. Messages ranging from 30k
to 500k are getting this "timeout after end of DATA" message.
I'm using Exim 2.12 on Solaris 2.6
--
*** Exim information can be found at
http://www.exim.org/ ***