[Mailman-Users] special characters in name and address
R.Barrett at ftel.co.uk
Tue Jan 8 17:33:08 CET 2002
At 09:56 08/01/2002 -0600, Matthew Shames wrote:
>I hope you don't mind another question from a Mailman "newbie". I am
>another of the Mac enthusiasts who have moved over to OS X in the past
>couple of years, and am enjoying expanding my knowledge to include some
>I've noticed a strange problem whereby Mailman appears to munge the "From"
>address when it contains both a name and an address, and the name contains
>a period. The setup: Mailman 2.0.7 on OS X 10.1.2, with Postfix
>(20010228-pl08) as the MTA. The list in question is called "test", and
>restricts postings to subscribed users. If I send a message, and the
>"From" header is set to:
>Matthew E. Shames <macdaddy at bluesmobile.com>
>Mailman rejects it because it states that it is being sent from
>matthewe.shames at bluesmobile.com. Additionally, it tries to send a bounce
>message to matthewe.shames at bluesmobile.com, which is not a valid address,
>so the postmaster (also me) gets notified.
>Now, if I set the "From" header to:
>Matthew Shames <macdaddy at bluesmobile.com>
>the message goes through without any incident. Additionally, if I set
>member_posting_only to false, messages from either scenario make it
>through without incident.
This is not a Mailman issue but a failure to conform to RFC822 issue. The
'.' character is a special character in a mail header field while
'Matthew', 'E' and 'Shames' are atoms. Because of the special character you
need to quote the string. You should be saying:
"Matthew E. Shames" <macdaddy at bluesmobile.com>
The missing quotes are leading to a parsed result which is at variance with
The other form you used:
Matthew Shames <macdaddy at bluesmobile.com>
is OK because 'Matthew' and 'Shames' are both atoms and hence the string
does not require quoting.
If you are really sad, mad or bad see http://www.faqs.org/rfcs/rfc822.html
>I'm not completely sure if this is a postfix issue, or a mailman issue, or
>something else. However, I don't seem to have this issue when sending
>non-list mail through postfix.
>I hope this makes sense--I'd be happy to explain further. If anyone has
>any insights, I'd be most grateful.
>Mailman-Users maillist - Mailman-Users at python.org
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