| Solution | - By default, five errors are permitted before the FortiMail unit drops the connection.
- For example, a test email to 7 invalid recipients, and only 5 errors are accepted by FortiMail and eventually, FortiMail closed the connection due to too many errors.
- Here is the FortiMail log.
- It is possible to go to the session profile: Error Handling -> Change 'Maximum number of errors allowed for each connection' to 10.
- Now, test email has been sent to 7 invalid recipients again and it is possible to see all 7 errors are accepted without the error '421 4.7.0 Too many errors'.
- It is not possible to see the error in the FortiMail log.
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