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Can I use a
non-existing
REPLY TO
email address to broadcast messages?
Broadcasting emails with a fake or non-existing
REPLY TO email address usually result in bounced
or undeliverable emails. Because most ISPs mail server have requirements for
outgoing or return REPLY TO email addresses as well as performing a reverse
nslookup--to
prevent and disallow you to send email to another ISPs SMTP
mail server, when the sender or recipient is a non-local user.
This
feature was
implemented to protect the mail server from being used by spammers to relay
their messages by using another company’s network and computer resources.
See:
Blacklist
551 User not local, please try <forward-path> or
Invalid Address: Relay request denied<RFC delivery status
notification
indicates that the recipient's email address have changed and your ISP mail server is forwarding it back to you and/or your ISP SMTP mail server does not accept email when neither the
sender nor the recipient is a
non local
user.
nslookup a DNS whois tool that perform forward and reverse DNS queries for the current
domain address (to get an IP address of a hostname and hostname of the IP address).
Non-local user ISPs mail server, to prevent
relaying of emails or SPAM will not allow you to send emails that is outside
your domain--meaning that; the
FROM
or (REPLY TO) using an email address domain that
is different from the log-in domain address.
Many ISP filters
incoming emails and automatically delete mails
where the TO address is different from the actual
recipient address-delete not bounced-hence you
won't know if the message actually got to the intended recipient.
See:
Email Filtering
Notes: If you are using your own mail
server program.
See:
Mail Server
FAQs
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