SES IPs on SORBS block list


Hi, is there anyway to report SES IPs that end up on a block list?

Currently SORBS is reporting,, and on their block list. This is currently impacting emails being delivered to and mailboxes.

I'm seeing a spike in NDR emails:

An error occurred while trying to deliver the mail to the following recipients: {username} ------=_Part_4169428_1598380491.1644906249203 Content-Type: message/delivery-status Content-Transfer-Encoding: 7bit Content-Description: Delivery Status Notification

Reporting-MTA: dns;

Action: failed Final-Recipient: rfc822; Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3140). You can also refer your provider to [] Status: 5.7.1

Any ideas how to get Amazon to get these off the SORBS list?

Thanks, Bruce.

demandé il y a 2 ans919 vues
3 réponses

SORBS is one of the DNSBLs that Amazon is unable to have their IP removed from these lists . reference

The page above has several recommendations, such as contacting the postmaster of the domain that rejected your message. Since yours is a hotmail (you should edit that out), it is unlikely you will be able to get through to them.

You should consider using a dedicated IP address. The address is dedicated to you and allows you to control the reputation of that address.

profile pictureAWS
répondu il y a 2 ans

Thanks @Jeremy_S - looks like a dedicated IP might be the only solution.


répondu il y a 2 ans
  • I have the same issue and I have a dedicated static IP... Any suggestions?


Are you suggesting that the ip be dedicated or manages but Amazon Web Services (AWS)

répondu il y a 6 mois

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