In Anti-spam system we wrote about technologies that help your emails to archive “Inbox” folder and protect them from cheaters. One of such technologies is a FeedBack Loop – a technology that works closely with mail servers and postmasters.

Below there is a list of web pages with FBL registration forms in ISP.

Before sending requests make sure that:

• you have a name and contact data of a responsible person: their phone number and email.
• you know the list of IPs and sender’s domains.
• abusemaster@ mailbox is configured and emails are delivered to it.
• you have an access to postmaster@ mailbox and emails are delivered to it.

Postmasters popular in Russia

World’s popular postmasters

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