unauthorized use of my domain by others

[Guest]

Microsoft Outlook 2003

I am receiving numerous Postmaster and Mailer Demon notices of failures to
deliver e-mail messages that I did not send. The "mailers" are sending
e-mails using various ficticious names (i.e. (e-mail address removed),
(e-mail address removed), (e-mail address removed), etc.) at my domain.

How can I eliminate this junk mail or whatever is happening?

 

[Vince Averello [MVP-Outlook]]

You can't stop anyone from using it. You basically have to filter them out
at your end of things (either at your mail server or client)

 

[Lanwench [MVP - Exchange]]

In

Microsoft Outlook 2003

I am receiving numerous Postmaster and Mailer Demon notices of
failures to deliver e-mail messages that I did not send. The
"mailers" are sending e-mails using various ficticious names (i.e.
(e-mail address removed), (e-mail address removed), (e-mail address removed), etc.) at my
domain.

How can I eliminate this junk mail or whatever is happening?

You can't stop someone from spoofing, alas. SMTP mail was designed for a
kinder, gentler time.

However, if you have a "wildcard" account set up with your
provider.....don't. Set up a single mailbox with as many aliases/forwards as
you need. Anything addressed to a non-existent address should not be
delivered. This will help a lot.

 

[Guest]

Many thanks. You helped me solve my problem.

In

You can't stop someone from spoofing, alas. SMTP mail was designed for a
kinder, gentler time.

However, if you have a "wildcard" account set up with your
provider.....don't. Set up a single mailbox with as many aliases/forwards as
you need. Anything addressed to a non-existent address should not be
delivered. This will help a lot.

 

[AJ Rembert]

You've been joejobbed

Many thanks. You helped me solve my problem.