Text anti-spam

Tip: change one option at a time and verify the result in the group so false positives are easy to spot.

In short#

Text anti-spam checks messages for spam patterns before links or forwards are considered. It is the safest place to start with a warning-only rollout.

How it works#

1. The local detector checks message patterns with the selected strictness.
2. If AI checking is enabled, eligible new members receive an additional check.
3. On a match, Defendy deletes the message if configured and applies the selected action or warning weight.

Set it up step by step#

1. Open Defendy in Telegram and choose the group you want to configure.
2. Compare the current values with the defaults explained below.
3. Change one option at a time; use the least disruptive value that meets your goal.
4. Check the result in the group after saving.

Every setting explained#

Enable filter#

Default: On.

Turns text spam detection on for the selected group.

Strictness#

Default: Standard.

Lenient reduces false positives, strict catches more spam with higher risk.

AI verification#

Default: Off.

Adds AI verification for suspicious messages from new members.

New members only#

Default: On.

Locked in the UI: trusted members stay on local checks only.

New member window#

Default: 7 days.

How many days after joining a member is treated as new for AI verification.

Delete violating message#

Default: On.

Removes the message that triggered the filter. If disabled, the user action can still be applied while the original message remains visible.

Action#

Default: Nothing.

What Defendy does after a violation: nothing, warn, notify, mute, kick or ban depending on the feature.

Action duration#

Default: 3600 sec.

How long a temporary mute or restriction lasts. Zero usually means no duration or permanent action.

Warning weight#

Default: 1.

How many warning points this violation adds to the warning system.

Practical example#

Use standard strictness, action “warn”, weight 1 and deletion on. Limit AI checks to members who joined during the last seven days. Tighten the filter only if the log shows missed spam.

Recommendations#

• Use standard strictness first, then adjust after reviewing real messages.
• AI verification adds latency and should not replace deterministic filters.

Troubleshooting#

• Check that Defendy is still an administrator in the group.
• Refresh the settings panel and make sure you are editing the correct group.
• If a setting is saved but does not work, check the bot permissions in Telegram.
• If you are not sure what happened, open the moderation log.