Set mail to only display mail within 30 or 60 days

[lty]

Set mail to only display mail within 30 or 60 days, Here are two 
examples.

1. normal
E.g:

A654 FETCH 2:4 (FLAGS BODY[HEADER.FIELDS (DATE FROM)])

* 2 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {73}
Date: Tue, 07 May 2020 12:26:55 +0800
 From:  <test at www.chengmail.ml>

)
* 3 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {62}
Date: Tue, 07 May 2020 12:35:34 +0800
 From: lty at cndns.com

)
* 4 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {62}
Date: Tue, 07 Jul 2020 17:41:53 +0800
 From: lty at cndns.com

)
A654 OK Fetch completed (0.002 + 0.000 + 0.001 secs).



2. Set to display mail within 30 days
E.g:

A654 FETCH 2:4 (FLAGS BODY[HEADER.FIELDS (DATE FROM)])

* 4 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {62}
Date: Tue, 07 Jul 2020 17:41:53 +0800
 From: lty at cndns.com

)
A654 OK Fetch completed (0.002 + 0.000 + 0.001 secs).


Is there any way to display the result of case 2?
I found lua.
https://doc.dovecot.org/admin_manual/lua/#mail-lua
But I don't know how to edit the lua script, Are there more examples?
I also watched the help, but it doesn't help much.
https://doc.dovecot.org/configuration_manual/authentication/lua_based_authentication/#authentication-lua-based-authentication
https://doc.dovecot.org/configuration_manual/push_notification/#lua-push-notifications

Can Lua fulfill my needs?