how to extract fields using regex

[umsundar2015]

I have the below values in a field ,

Sadf123.dfd.com
er-md-kt-mgmt.com
feb-fe345@tbm.com

I need to extract the values like below ,
Sadf123
er-md-kt
feb-fe345

Can anyone help me to extract this

[493669]

Hi @umsundar2015,
Try This:

...|rex "(?<string>\S+)[\.|\-|@]\w+\.com"

[umsundar2015]

thank you .

String here means the field name rit ?

[493669]

string is the field name to be extracted...
here I assume that before your .com you need to extract till any special characters(like . or - or @) comes...
Please provide your raw data where it wont work
have a look at regex101 which is helpful site for trial https://regex101.com/r/088pwQ/1

[umsundar2015]

This is not working , it displays values like
wkspfbtl18.devqa

Can you please help with other regex