Hi there,

I have configured Exim to drop the connection after 3 invalid recipients were tried by the caller.

I now want such failure to be used to ban such bots.

The log line that exhibits such behavior looks like follows:

exim[3325805]: H=([3.4.5.6]) [3.4.5.6]:44340 I=[1.2.3.4]:25 F=<[email protected]> rejected RCPT <[email protected]>: Too many invalid recipients
Can someone pls help me by crafting a filter expression that matches such messages?

I understand regexps well, but I must admit I'm very incompetent about the fail2ban expressions... :-(

Many thanks in advance for any help I can get.

Kind regards,

Ralf

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