[Mailman-Users] about address format

[Sandi Gruver]

A list member wants to change her subscriptions from @xxx.edu to @mail.xxx.edu.
She is unable to do so globally, received this message:
> Bad email address provided Member name successfully changed.

Later she unsubscribed from a different list and on attempting to re-subscribe with the new address (@mail.xxx.edu) she got this error:
The email address you supplied is not valid. (E.g. it must contain an`@'.)

Any suggestions for this type of mail address?  (Didn't find anything helpful in the archives)
... and, yes I can manually subscribe her.
 

Thank you,

Sandi Gruver
Unix System Administrator
SBCTC-ITD
1300 Quince Street SE
Olympia, WA 98504
360.704.1019