[Tools-discuss] Removing many types of block lists affecting email submission

[Robert Sparks <[e-mail]>]

As discussed earlier this year during the tools calls (see, e.g., 
https://notes.ietf.org/tools-team-20250415) we have had, for many 
years, several collections of blocklists affecting email submission.

These include many IP blocks, specific email address blocks, and 
regex-based email address blocks affecting many domains. Most were 
created years ago in reaction to abuse at the time.

We are currently removing elements from each of these collections in 
batches, monitoring for issues from the reinstated addresses.

We are shifting to an operational model that assumes timely automated 
removal when adding a block become necessary (to stop large spam 
submission campaigns for example).

We recently received a complaint from an affected organization, and 
prioritized clearing the related blocks. Please report any impedance 
with submission you observe so we can be sure it is rectified.

RjS