
i've got a mailman site that has a list with a subscriber whose email address is case sensitive for the username part. mailman is downcasing the address, and it makes mail to the user bounce user unknown.
I'm aware that the mail system that is bouncing this address as user unknown is pretty darn unusual, but the list admin finds this unacceptable. Does anyone know if case sensitive user names are rfc complient addresses?
scott

I just looked at rfc 822 and found that it specifies that username parts of email addresses be case sensitive except in the case of "postmaster".
I'll look into what is necessary to make mailman do this.
scott
On Sun, Oct 11, 1998 at 07:54:44PM -0400, Scott wrote: | i've got a mailman site that has a list with a subscriber whose email | address is case sensitive for the username part. mailman is | downcasing the address, and it makes mail to the user bounce user | unknown. | | I'm aware that the mail system that is bouncing this address as user | unknown is pretty darn unusual, but the list admin finds this | unacceptable. Does anyone know if case sensitive user names are rfc | complient addresses? | | scott | | | | | _______________________________________________ | Mailman-Developers maillist - Mailman-Developers@python.org | http://www.python.org/mailman/listinfo/mailman-developers |

Well, to be exact, rfc 822 says "case preserved" which is not quite the same. Sendmail for example is not case sensitive when looking up aliases, but still preserves the case when rewriting addresses. In any case (!) I don't think it's a bad thing to make Mailman handle adresses in a case transparent manner.
tomas
Scott wrote:
I just looked at rfc 822 and found that it specifies that username parts of email addresses be case sensitive except in the case of "postmaster".
I'll look into what is necessary to make mailman do this.
scott
On Sun, Oct 11, 1998 at 07:54:44PM -0400, Scott wrote: | i've got a mailman site that has a list with a subscriber whose email | address is case sensitive for the username part. mailman is | downcasing the address, and it makes mail to the user bounce user | unknown. | | I'm aware that the mail system that is bouncing this address as user | unknown is pretty darn unusual, but the list admin finds this | unacceptable. Does anyone know if case sensitive user names are rfc | complient addresses? | | scott | | | | | _______________________________________________ | Mailman-Developers maillist - Mailman-Developers@python.org | http://www.python.org/mailman/listinfo/mailman-developers |
Mailman-Developers maillist - Mailman-Developers@python.org http://www.python.org/mailman/listinfo/mailman-developers

yup, most unix systems won't support case sensitive user names. i also think mailman should preserve case for the user name portion of email addresses. it really should be rfc complient to work in production.
scott
On Mon, Oct 12, 1998 at 02:45:10PM +0200, Tomas Fasth wrote: | Well, to be exact, rfc 822 says "case preserved" which is not quite the | same. Sendmail for example is not case sensitive when looking up aliases, | but still preserves the case when rewriting addresses. | In any case (!) I don't think it's a bad thing to make Mailman handle | adresses in a case transparent manner. | | tomas |
participants (2)
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Scott
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Tomas Fasth