When sending e-mail from iPhone: lost connection after DATA

Hi, When I attach large images 5-10MiB/s, sometimes this occurs, I tried setting: tcp_windowsize = 65535 I also tried setting ecn to 0. But neither seemed to fix the problem below. I can send the same images to an Exchange server and they send through with no problems. Also, if I send

Re: When sending e-mail from iPhone: lost connection after DATA

Justin Piszcz: Feb 10 10:16:38 p34 postfix/cleanup[29153]: BD7141200F4: message-id=fefad905-882b-4984-81bb-38292e820...@lucidpixels.com Feb 10 10:16:38 p34 postfix/cleanup[29153]: BD7141200F4: warning: header X-Mailer: iPhone Mail (8C148) from unknown[166.137.8.8];