Emanuel.


Your regex should look like below:

   failregex = ^.*\[<HOST>\].*Incorrect authentication data.*
or
failregex = ^.*fixed_login authenticator failed.*\[<HOST>\].*


Best regards.
Tom



On 17/01/18 18:10, Bill Shirley wrote:
an 17 11:38:59 linux.backend exim[21870]: 2018-01-17 11:38:56 fixed_login authenticator failed for (User) [190.98.45.180]: 535 Incorrect authentication data (set_id=s...@dattaweb.com)

In the file maillog-custom.conf

failregex =  \[<HOST>\]:\d+: 535 Incorrect authentication data

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