This is the problem. I remember a very simple method to avoid spambots on a forum with great success.
It is based on the following idea:
A spambot or even a spammer necessarily uses a disposable email to register. These emails are usually not valid for more than 10-30 minutes, just to be able to receive the confirmation link.
In this forum, the sending of the confirmation email has been delayed for half an hour due to this and with this the spam problems have ended. A normal user, if they really want to sign up, waits this time without problems.
Then the usual 50 messages before being able to put a link as an additional measure. Simple and without third party apps.
This is the problem. I remember a very simple method to avoid spambots on a forum with great success. It is based on the following idea: A spambot or even a spammer necessarily uses a disposable email to register. These emails are usually not valid for more than 10-30 minutes, just to be able to receive the confirmation link. In this forum, the sending of the confirmation email has been delayed for half an hour due to this and with this the spam problems have ended. A normal user, if they really want to sign up, waits this time without problems. Then the usual 50 messages before being able to put a link as an additional measure. Simple and without third party apps.