On Thu, May 02, 2013 at 11:09:35PM -0700, mailtime wrote: > 20:08:45.927 TX: <MAIL FROM:<sen...@sendersdomain.co.nz> SIZE=6469087>
The message size is ~6 MB. > 20:08:50.163 TX: <DATA> > 20:08:50.323 RX: <354 End data with <CR><LF>.<CR><LF>> Message content transmission starts at 20:08:50.323. > 20:09:12.407 SMTPResponse(Sending Body): Socket error - 10053 - > WSAECONNABORTED Transmission aborts 22.084 seconds later. So the bandwidth used is at most 3Mb/s, but sufficiently recent Postfix releases would normally log the number of bytes received, and cleanup did see headers, so your Postfix is likely relatively old. Do capture the session and apply wireshark or similar. -- Viktor.