I am getting "Mail Delivery Failed" messages for some of the
emails sent.
As I am replying an email, I am sure that there isn't any misspelling on the recipient's email address.
A typical message below.
On 22/06/2015 9:47 am, "Mail Delivery System"
wrote:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
…
Any help would be very much appreciate.
Thanks in advance.
Best Answer
It is possible that the mail was sent from a disposable e-mail address. If that's the case then mail sending will be failed.