Squirrelmail not working

[jalapenojayne]

Help! I keep getting this message:

This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:

[email protected]

Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 13): 550 "Unknown User"

I have used several accounts to send messages to myself and get the same message.

When I tried to send out to my employees using our business accounts, I got this:

Message not sent. Server replied:

Requested action not taken: mailbox unavailable
550 "Unknown User"

Help!!! This is my main business account.

 

[nobaloney]

I've moved your post; it's more a User-Level Difficulty.

And it has nothing at all to do with Squirrelmail.

There's no email address set up for jalapenojayne.com. The email address doesn't exist on the server:

$ telnet mail.jalapenojayne.com 25
Trying 72.35.81.163...
Connected to mail.jalapenojayne.com (72.35.81.163).
Escape character is '^]'.
220 www47.hostpc.com ESMTP Exim 4.60 Sun, 08 Jul 2007 22:50:48 -0400
ehlo of1.riv.nobaloney.net
250-www47.hostpc.com Hello of1.riv.nobaloney.net [67.112.189.217]
250-SIZE 20971520
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP
mail from:<[email protected]>
250 OK
rcpt to:<[email protected]>
550 "Unknown User"
quit
221 www47.hostpc.com closing connection
Connection closed by foreign host.
$

You should probably contact your hosting company.

Jeff