SUMMARY: sendmail problem?

From: Dave Cain (
Date: Mon May 06 1996 - 08:14:12 CDT

In short, the concensus seems to be that my system(s) have
sendmail configured correctly.

"sendmail -v -bv" verifies the address in two ways:

1. If it's a local address, it checks for the existance of that
user, and hence a full delivery of email.

2. If it's a remote address, it only parses the email address,
and doesn't bother to check and see if that system/domain, and user

If you want to see if a remote email address is deliverable,
you need to:
1. Ping, nslookup, etc. the system/domain to be
sure it exists.

2. Telnet or mconnect to the mail port, and use the
vrfy command to check if the user exists.

Several people noted that is
in fact a real e-mail address (guess I should have
verified this address first). Still, my systems report
deliverable mail for email address that DEFINITELY
do not exist (e.g.,

Thanks to all that contributed.

From: Dave Cain[]
Sent: Friday, May 03, 1996 4:24 PM
To: ''
Subject: sendmail problem?

You'll have to forgive my ignorance of sendmail, but one
of the Sun manuals says you can test whether mail can
be delivered to a recipient by:

sendmail -v -bv recipient

and if you get a "...deliveable message" it can.

So tell me if I'm using I am using sendmail wrong or if
I have a problem with my sendmail configuration:

When I say:

sendmail -v -bv

(obviously a ficticious (sp?) email address), I get: deliverable

I get the same response on several SunOS 4.1.X,
Solaris 2.x, and a UnixWare boxes. Is this right, or do I have a
problem with my e-mail.

- Dave

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