AntiSpam Error Log Regex::Expression()

[S-GenZ]

In a Day, few times, Anti-Spam Error log outputs following message.

Regex::Expression() error No Matching delimiter when parsing//(Byte String)

What's Error log meaning? and do I have to do anything?

Version v7.0.5

FortiMail 

[Anthony_E]

Hello,

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.

Thanks,

[srajeswaran]

The most possible reason is one of the regex expression in your policy/rules is incorrect. Check the history logs for the specific event to identify the matching policies/rules and check if there is any regex. We may have to re-validate the expression.

[S-GenZ]

Thank you srajeswaran.

I checked history logs, but I could not find any suspicious points at the times which arround errors. 

"parsing//(Byte String)"

The (Byte Strings) are like a "damaging photo" in our language.

[srajeswaran]

Can you share the complete log for this error?

[S-GenZ]

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@srajeswaran wrote:

Can you share the complete log for this error?

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Regex::Expression() error No Matching delimiter when parsing//ダメージ写真