On Thu, 26 Sep 1996, Shane T Kinsch wrote:
>
> On Thu, 26 Sep 1996 10:13:27 -0400 Jim Meritt wrote:
> >I know how to "check" email addresses (well, a lot of them) by telnetting
> >to the hostname post 25 and querying the sendmail.
> >
> >Unfortunately, not even this works if there is a firewall (or two) in the way.
> >How can I verify email addresses (without trying it)?
> >
> >Jim Meritt
>
> I believe you can send e-mail to "echo @
psi .
net" and it will send
> your message back to you.
>
> Shane Kinsch
I think he was trying to verify if an email address existed elsewhere,
rather than trying to check his own address.
If port 25 is blocked on a given machine, then mail is likely being
handled by a gateway on another system. Check DNS for MX records.
- r.w.
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