dovecot Logs

[siemsplunk]

Hello team,

Am working with dovecot logs-- it's a mail logs.

I managed to integrate it with Splunk through syslog.

it gives me the logs in this format (Attached screenshot)

Now, I want to create a new field to have value of to/receiver
From the screenshot the value of to/receiver is in lda(value)

NOTE: on the below screenshot I dont have to/receiver values i just have from/sender and subject

siemsplunk_0-1721797503738.png

Help me please !

[bowesmana · Accepted solution]

You can do inline extraction with rex, e.g.

| rex "lda\((?<to>[^\)]*)\)"

which will extract a new field called to from the portion between the brackets 

You can also set this up as a field extraction - see Fields->Field Extractions and create a new field extraction there using the regex above and then, if lda(xxx) exists in your data, you will get a field called to