Table of Contents
About this denylist
The Abandoned and Unmanaged list is an IFTAS-curated list of domains that are highly recommended for defederation or limited delivery. Each domain is labelled using a shared vocabulary label. Each domain is investigated by human review for governance, common content, network and service activities, hosting location and more.
Before including any domain on this list we perform the following efforts to ascertain the service status:
- spam accounts are reported to the domain and monitored for mitigation for one week,
- if no mitigation is observed, the listed admin is contacted on network,
- if no response, the listed admin is contacted via email if publicly available,
- if no response, then any DNS/domain registrant contact information is used if available.
Inclusion on this list means we have observed this domain:
- is a dedicated spam service, or
- has been clearly abandoned but still allows creation of new accounts, or
- chooses to not delete known spam accounts, even when reported; and
- we are highly unlikely to ever retract an entry.
In all cases we strongly recommend you use a Federation Policy to aid you in your decision making.
Download / subscribe
iftas-abandoned-unmanaged-latest.csv (Mastodon import format)
The permanent file location is:
https://about.iftas.org/wp-content/uploads/2025/10/iftas-abandoned-unmanaged-latest.csv
(The file path includes ‘/2025/10’ which will not change; the current version will overwrite any previous version at this URL)
See Denylist Management Tools for third-party tools to import or implement this denylist.
View current denylist
IFTAS Abandoned / Unmanaged Denylist Output – HTML table view of this denylist
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