[Women] Returned mail: User unknown

[postoffice]

The original message was received at 2015-12-03 22:43:04 -0500
from postoffice.(null) [10.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<stonegarden at suddenlink.net>

   -----Transcript of session follows -----
... while talking to postoffice.(null).:
>>> RCPT To:<stonegarden at suddenlink.net>
<<< 550 5.1.1 unknown or illegal alias: stonegarden at suddenlink.net
550 <stonegarden at suddenlink.net>... User unknown
-------------- next part --------------
An embedded message was scrubbed...
From: lWilla O'Neill via Women <women at fuusm.org>
Subject: [Women] December Holiday potluck at Willa's
Date: Wed, 2 Dec 2015 13:37:55 -0500
Size: 5701
URL: <http://fuusm.org/pipermail/women_fuusm.org/attachments/20151203/4a20de48/attachment.eml>