mail error: 451

[cathode]

Hello,
I'm having a client that is getting this error when trying to send email:

An unknown error has occurred. Subject 'this is a test', Account: 'mail.xxx.com', Server: 'mail.xxx.com', Protocol: SMTP, Server Response: '451 Temporary local problem - please try later', Port: 25, Secure(SSL): No, Server Error: 451, Error Number: 0x800CCC6A

I haven't seen that one before, has anyone else?
I was able to reproduce it using a test account

[zenfort]

I'm on cpanel09b
I just got back in - away from computer.

I haven't had any email in 7 hours

Hi. This is the qmail-send program at macmail.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<me@mydomain.com>:
69.56.171.58 failed after I sent the message.
Remote host said: 451 Temporary local problem - please try later
I'm not going to try again; this message has been in the queue too long.

--- Below this line is a copy of the message.

[piku]

Ditto.

[Byon]

Me too, on cpanel09

[openbox]

I submitted a ticket. I'm having the same problem.

[piku]

ditto.

update: seems to be a problem with cPanel. currently being looked at by andrew and staff.

[AndrewT]

As per your tickets, this issue should have been resolved a couple of hours ago.

[Ihost]

I have the same problem with one domain on CP19. Other domains on the same server are fine. Trouble ticket submitted.

[AndrewT]

I have the same problem with one domain on CP19. Other domains on the same server are fine. Trouble ticket submitted.

Your issue is unrelated to this as per my reply to your ticket.

[Ihost]

Problem fixed. Was some email filters I set up