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I'm on the non classic interface (the standard gui) I tried to send an email to


The email address is valid and I'm able to send to it via another client or the older interface, but with the standard gui, I get the message

Invalid Address:

We cannot find a match for this email address:


Please use an email address that looks like user@example.com or a nickname or a distribution list name from your Yahoo! contacts.

Does anybody know how I can send the email to that email address with the standard Yahoo! mail GUI, and without getting that error message?

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up vote 2 down vote accepted

You have a period at the end of the email address


It should be users-digest-subscribe@httpd.apache.org (no period)

Period makes the email address highlighted in red

Removing the period gets me a reply from the Apache Digest with the subject

confirm subscribe to users@httpd.apache.org

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i'll provide a link to our chat here chat.stackexchange.com/rooms/7/google-fu as it mentions related things like the old interface. – barlop Mar 21 '12 at 22:44

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