Date: Sunday, July 10, 2011, 12:46 PM
Sorry, we were unable to deliver your message to the following
address.
<
xx...@xxxxxxxxxxxxx.e4ward.com>:
Remote host said: 550 (result of an earlier callout reused). [RCPT_TO]
What's going on?
This same email went through just fine a few minutes later. I've had
other reports of strange bounces too.