Q&A | Can one FBL notification address be used for multiple domains

Dear EmailKarma.net,

Q: We are currently setting up some new Feedback Loops (FBLs) with several ISPs and I’m looking for a best practice recommendation regarding our set-up within these systems.

Suppose I send mail from two different domains (user@news.example1.com and user@sub.example2.com), I give the ISP one email address for my FBL notifications to go to (abuse@example.com)? Does the ISP expect the notification email address to be on the same domain or IP as my mailing domains? What do you suggest?

Thanks,
Steve

A:
Hi Steve,

The sending domains should not matter when configuring your FBLs as they are generally IP based systems and not domain based. These systems look at registered IPs or Netblocks (/24) and a preconfigured (usually supplied by the requesting party) reporting address. In fact many ESPs have setups similar to this; where mail is sent from alias@subdomain.client.com but FBL data is set to FBLContact@esp.com, which is a global address configured to accept FBL data for the mail servers, IP addresses, used by their Email Marketing Platform.

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