A high number of my emails (not each and every one) return this error message in my inbox, as soon as I send an email.
Even though the email implies that the message may not have gone through, each email I send shows in the 'sent items' folder implying that the emails have been sent!!
The error message I get is:
Undeliverable: [subject header of my email\
Sent: [date and time]
Your message did not reach some or all of the intended recipients.
Subject: [subject header of my email]
Sent: 10/16/2007 10:41 AM
The following recipient(s) cannot be reached:
xxxxxxxx (email@example.com) on 10/16/2007 10:41 AM
553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)
This is very very annoying and inconvenient since a followup call then becomes necessary to confirm if the email indeed did get through!!
Subsequent telephone checking with receipient confirms that email indeed did not go through even though it shows up in 'sent items'.
What needs to be done to make sure that there error messages do not show.