1. Add @RemoveJoinGroupMsgBot to your Telegram group
2. Promote @RemoveJoinGroupMsgBot as an administrator with permission to delete messages
3. Done! The bot would function automatically. Noted that previous joined group messages cannot be deleted
The following service messages would be deleted:
1. "... joined the group"
2. "... joined the group via invite link"
3. "... added ..."
4. "... lefted the group"
2. Bot to Remove Spam Link (e.g. t.me/...)
You might see lots of scammers such as those selling bitcoins in your group. @RemoveSpamLinkBot is a Telegram bot that can delete these messages automatically by looking for Telegram / WhatsApp invitation link