Splunk Search

simple email regex

kleckns
Explorer

Ive been trying most of the regex solutions on this forum, but cant get any of them to work. Im trying to extract emails into a new field without any of the extra junk

field value needs regex:
 "John Doe" <john.doe@somedomain.tld>

search:
    ... | rex field=from "(?<from>(?<=<)[^>]+)" | table from, other fields, etc...

im looking for john.doe@somedomain.tld without any quotes or gt/lt characters around it in the from field

Tags (2)
0 Karma
1 Solution

somesoni2
Revered Legend

This should do it.

... | rex field=from "(\<|\;)(?<from>[^\>\;]+)" | table from, other fields, etc...

View solution in original post

somesoni2
Revered Legend

This should do it.

... | rex field=from "(\<|\;)(?<from>[^\>\;]+)" | table from, other fields, etc...

kleckns
Explorer

your regex worked great. Part of the problem was a dumb mistake on my part. i had switched the fields around in the field=email_from "(<|\;)(?[^>\;]+)"

the orig field that had the values is email_from, not from. i wanted to create a new field called from... so i had it backwards.

Thank you for the regex!

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...

Splunk Developer Day announcements: AI agents, MCP tools, Forecasting, and Custom ...

Splunk Developer Day was packed with product and platform updates for developers building in the AI ...