FBL signup

ISP Feedback Loops

A Feedback Loop (FBL) is a system by which an Internet Service Provider provides the sender a copy of the message that one of their subscribers has reported as spam — usually by hitting a “report spam” button in that ISP’s mail interface.

ISPs offer feedback loops to qualified senders, so the senders can identify subscribers who no longer want to receive similar mail and/or any problems originating from their networks, such as virus-infected spam-producing machines.

This page summarizes the information about FBL signup pages, whitelist pages, and postmaster pages of most popular ISPs around the world.


FBL Signup

Whitelist Signup

Postmaster Page

AOLAOL FBL signupdoes not provideAOL postmaster
AT&Tdoes not providedoes not provideAT&T postmaster
Bellsouthdoes not providedoes not provideBellsouth postmaster
ComcastComcast FBL signupdoes not provideComcast postmaster
centrum.czCentrum FBL signup by emaildoes not providedoes not provide
CoxCox FBL signupdoes not provideCox postmaster
EarthlinkEarthlink FBL signupdoes not providedoes not provide
Excite (Bluetie)Excite FBL signupdoes not provideExcite postmaster
FastMailFastMail FBL signupdoes not providedoes not provide
GmailGmail FBL signup (ESP only)does not provideGmail postmaster
HotmailHotmail FBL signupdoes not provideHotmail postmaster
Mail.ruMail.ru FBL signupdoes not provideMail.ru postmaster
OutblazeOutblaze FBL signupdoes not providedoes not provide
RackspaceRackspace FBL signupdoes not provideRackspace postmaster
SynacorSynacor FBL signupdoes not providedoes not provide
Terra.com.brdoes not providedoes not provide
TucowsTucows FBL signupdoes not providedoes not provide
UnitedOnline (NetZero/Juno)does not provideUnitedOnline Whitelist signupUnitedOnline postmaster
USA.netUSA.net FBL signupdoes not provideUSA.net postmaster
Verizondoes not provideVerizon Whitelist signupdoes not provide
XS4ALLXS4ALL FBL signupdoes not providedoes not provide
Yahoo!Yahoo! FBL signupYahoo! Whitelist signupYahoo! postmaster
YandexYandex FBL signupdoes not provideYandex postmaster
ZOHOZOHO FBL signupdoes not providedoes not provide

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