Great Circle Associates Majordomo-Users
(April 1997)
 

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Subject: Re: very strange mail loop found/majordomo ease of use
From: Jason L Tibbitts III <tibbs @ hpc . uh . edu>
Date: 10 Apr 1997 00:57:18 -0500
To: jeffw @ smoe . org (Jeff Wasilko)
Cc: majordomo-users @ GreatCircle . COM
In-reply-to: jeffw@smoe.org's message of Thu, 10 Apr 1997 00:15:02 -0400
References: <19970410001502.BW10553@smoe.org>

>>>>> "JW" == Jeff Wasilko <jeffw@smoe.org> writes:

JW> [<jewel-request>] [<sgtmjrp@inetworld.net>]

I think that 1.94.1 would have complained about the space there, but I
could be wrong.

Sendmail seems to accept an entire address as a domain-literal
(i.e. enclosed in square brackets).  It shouldn't; RFC822 says it's
illegal.

JW> Perhaps majordomo can check for this kind of subscription attempt in
JW> the future?

Well, you can run validate addresses (from
ftp://ftp.hpc.uh.edu/pub/majordomo) periodically to check your lists for
bad things.  You might also try hacking the code directly into Majordomo.

Here's what proto-2.0 has to say about it:

XYX:sina:mj/2.0/bin> ./mj_shell subscribe test-list '[<jewel-request>] [<sgtmjrp@inetworld.net>]'
**** The following was not successfully added to test-list:
  [<jewel-request>] [<sgtmjrp@inetworld.net>]
    Invalid address:
Domain literals (words in square brackets) are only permitted on
the right hand side of an address: [<jewel-request>] [<sgtmjrp@inetworld.net>]
Did you mistakenly enclose the entire address in square brackets?

I suppose a completely enlightening message would be pretty difficult to
cook up for an address this broken, but at least they get a hint of the
problem and the address stays off of the list.

 - J<


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From: Jason L Tibbitts III <tibbs@hpc.uh.edu>
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