A common and frustrating problem, but it is manageable.
Short Answer: The standard solution is to add a pre-built moderation bot to your channel, which uses an automated, interactive verification process to filter new members.
Let’s look at how the different types of content these security bots use can protect your channel.
Firstly, the most effective method is a security bot that presents new users with an interactive text or image-based challenge, such as a ‘Click to verify’ button or a simple captcha image. This interactive content acts as a gate that most spam bots cannot pass.
Secondly, without any coding, you can use simple text-based commands to configure the bot to manage newly verified members, for instance, by automatically deleting any text message containing a link from a new user for their first 24 hours.
Thirdly, this entire automated approach is fundamentally more effective than relying on Telegram’s built-in manual tools. Those default options are purely reactive, requiring you to clean up a mess after it happens, whereas a proper moderation bot proactively stops the attack before it starts.
Cheers,
Jeff
.
.