splunk alert subject - [EXTERNAL] splunk alert failed

[raj_mpl]

Hi All,

We used to get splunk alerts with a subject line defined as splunk alert : $name$
From 2 days onwards , Subject line included a string called [EXTERNAL] in all the Splunk alerts . Ex

[EXTERNAL] Splunk Alert : Failure Alert . Unwanted string [EXTERNAL] was added to all the subject lines

Why this [EXTERNAL] string is being adding to the splunk alerts ?
How to avoid that?

Thanks

[renjith_nair]

@raj_mpl,
It's worth to check with your mail admin of your organization to see if they have a rule added to distinguish between employee email and system emails. It's a wild guess though.