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Error 451 message

Community Veteran
Posts: 2,322
Thanks: 230
Fixes: 2
Registered: 04-08-2009

Error 451 message

I am suddenly unable to send emails containing an attachment. The attachment is about 29Mb in size, and right at the end of the upload process I get this message from the email client...
"Error 451:Internal Queuing Error"
The upload seems to progress normally right up to the end. Anyone able to throw any light on this? Is it originating from the PN server?
Edit: Ok..  sent the same attachment using the same email client through a Yahoo smtp server and it worked fine. Looks to me like it's a Plusnet server problem? Anything to do with the recent Spam platform migration?
4 REPLIES
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: 18-07-2007

Re: Error 451 message

Hi nozzer,
Hopefully not but it does sounds like it could be. I've passed it on for checking, we'll get back to you as soon as we've any information.
Community Gaffer
Community Gaffer
Posts: 13,236
Thanks: 974
Fixes: 83
Registered: 04-04-2007

Re: Error 451 message

Well the maximum email size hasn't changed during the transition from IronPort > Cloudmark:
220 avasout07.plus.net smtp relay.plus.net
ehlo avasout
250-avasout07.plus.net hello [84.93.217.40], pleased to meet you
250-HELP
250-AUTH LOGIN PLAIN
250-SIZE 104857600 <---- Maximum size in bytes
250-PIPELINING
250-8BITMIME
250 OK

Just trying myself to see if I can replicate the problem...
Edit: Sent a 20Mbps test file provided by ThinkBroadband using relay.plus.net and it arrived at the other end in one piece without any errors.

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

Community Gaffer
Community Gaffer
Posts: 13,236
Thanks: 974
Fixes: 83
Registered: 04-04-2007

Re: Error 451 message

Managed to replicate the problem with a 50Mb file - we're looking into it...
Edit: Should now be fixed, it was a problem with the config on the Cloudmark boxes.

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

Community Veteran
Posts: 2,322
Thanks: 230
Fixes: 2
Registered: 04-08-2009

Re: Error 451 message

Thanks Bob. Every one a winner!  Wink