block user from exim/sendmail

is there a way to disable an account from being able to use the services to send email?

Thread starter	Similar threads	Forum	Replies	Date
	SpamAssasin - how to block spamhaus listed IPs as cpanel user?	Email	6	Nov 25, 2021
B	Blocking email spam to non existing user account after reaching certain number of fails?	Email	3	Jul 13, 2021
J	Block e-mail addresses from e-mailing any user on server	Email	11	Mar 4, 2019
R	Blocking outgoing mails to domain for list user in exim	Email	1	Feb 27, 2019
G	EXIM blocking users send out emails	Email	2	Aug 12, 2011

Similar threads
SpamAssasin - how to block spamhaus listed IPs as cpanel user?
Blocking email spam to non existing user account after reaching certain number of fails?
Block e-mail addresses from e-mailing any user on server
Blocking outgoing mails to domain for list user in exim
EXIM blocking users send out emails