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552 Spam Message Rejected email error

Janetdeb
Newbie
Posts: 4
Thanks: 1
Registered: ‎13-09-2018

552 Spam Message Rejected email error

I am receiving 552 rejected messages back when trying to send emails to an plus.com email address that I have used in the past.  I have copied in the details.txt file that was received back when the email failed.  see below

Details.txt

Reporting-MTA: dns; smtp04.mailcore.me

 Action: failed

Final-Recipient: rfc822;mike@xxx.plus.com

Status: 5.0.0

Remote-MTA: dns; mx.avasin.plus.net

Diagnostic-Code: smtp; 552 Spam Message Rejected

 

 

I hope this helps and would be interested in your comments/feedback

many thanks

6 REPLIES 6
bobpullen
Community Gaffer
Community Gaffer
Posts: 16,276
Thanks: 4,053
Fixes: 260
Registered: ‎04-04-2007

Re: 552 Spam Message Rejected email error

This will be because our anti-spam filters:-

  • Don't like the address you're sending from.
  • Don't like the server the email is being sent from.
  • Don't like something in the content of the email/signature block.

Fairly easy to determine if we're dealing with the last point by attempting to send a blank message. If that still doesn't get through then it's likely the first point. If it does get through, then it's likely the second point.

Knowing which it is dictates what best to suggest for you.

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

Janetdeb
Newbie
Posts: 4
Thanks: 1
Registered: ‎13-09-2018

Re: 552 Spam Message Rejected email error

hi bob

sorry for the late reply, wasn't able to do this straight away but thanks for your reply and having sent a blank email to the same recipient i have received back the following rejected email with this in the details.txt file

Reporting-MTA: dns; smtp04.mailcore.me

Action: failed
Final-Recipient: rfc822;mike@xxx.plus.com
Status: 5.0.0
Remote-MTA: dns; mx.avasin.plus.net
Diagnostic-Code: smtp; 552 Spam Message Rejected

 

so any further advice would be very helpful please... Smiley

 

bobpullen
Community Gaffer
Community Gaffer
Posts: 16,276
Thanks: 4,053
Fixes: 260
Registered: ‎04-04-2007

Re: 552 Spam Message Rejected email error

Can you private message me the email address you're sending from?

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

Janetdeb
Newbie
Posts: 4
Thanks: 1
Registered: ‎13-09-2018

Re: 552 Spam Message Rejected email error

Hi Bob

Any news on how we sort out this spam error message please, I sent you over a PM and also it is doing the same now on another email which is on the same domain so its definitely plusnet blocking emails from that domain name but why?

 

thanks

janet

 

 

bobpullen
Community Gaffer
Community Gaffer
Posts: 16,276
Thanks: 4,053
Fixes: 260
Registered: ‎04-04-2007

Re: 552 Spam Message Rejected email error

Try again now, should be sorted.

The reason it's happening is because the domain is falling foul of this.

"Cloudmark Authority achieves this through a unique combination of proprietary technologies including Advanced Message Fingerprinting algorithms and real-time threat reporting from the Cloudmark Global Threat Network, consisting of billions of trusted users located in 165 countries around the globe."

Someone, or something is identifying spammy emails containing references to, or being sent from the domain in question. This could be anything from users marking the messages as spam to emails being delivered to spam traps.

The best way to prevent this sort of thing happening is to ensure your mailing lists etc. are clean/audited. It's also worth the owner of the domain considering implementing SPF & DMARC/DKIM if they haven't already.

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

Janetdeb
Newbie
Posts: 4
Thanks: 1
Registered: ‎13-09-2018

Re: 552 Spam Message Rejected email error

thanks bob much appreciated.  We will test both emails and make sure they are sending ok and then take a look at what you have suggested... Smiley