Ok, btw i need to ask.
I tried to answer the
firstname.lastname@example.org address for the forum being tested.
I received such a feedback message from
This is the mail system at host wilbur.contactoffice.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
inbound-smtp.eu-west-1.amazonaws.com[xx.xx.39.xx] said: 550 5.1.1
Requested action not taken: mailbox unavailable (in reply to RCPT TO
Is there any reason to be concerned? Is bounce set correctly?
and so basically why does such a feedback come from
Why is it from this address?
Why does it look like this? and who is
I didn’t set it anywhere ? does it is aws automaton setting or how ?