PROBLEM CHANGE E-MAIL ADMINISTRATION

good evening, having created the wordpress site for someone else, I need to change the admin email. The site tells me that it can only be changed if the owner of the new email confirms the change of administrator via the email that was sent to him. However, no emails are sent. I tried to download WP MAIL SMTP and configured it according to the tutorial, but when I proceed with the “email test” I get this error.

Versions:
WordPress: 6.2.2
WordPress MS: No
PHP: 8.2.8
WP Mail SMTP: 3.8.2

Params:
Mailer: smtp
Constants: Yes
ErrorInfo: SMTP Error: Could not connect to SMTP host. Failed to connect to serverSMTP server error: Failed to connect to server SMTP code: 111 Additional SMTP info: Connection refused
Host: localhost
Port: 25
SMTPSecure:ssl
SMTPAutoTLS:bool(false)
SMTPAuth:bool(true)

Server:
OpenSSL: OpenSSL 1.1.1k FIPS 25 Mar 2021

Debug:
Email Source: WP Mail SMTP Mailer: Other SMTP SMTP Error: Could not connect to SMTP host. Failed to connect to serverSMTP server error: Failed to connect to server SMTP code: 111 Additional SMTP info: Connection refused

SMTP Debug:
2023-07-28 11:31:14 Connection: opening to ssl://localhost:25, timeout=300, options=array()
2023-07-28 11:31:15 Connection failed. Error #2: stream_socket_client(): Unable to connect to ssl://localhost:25 (Connection refused) [/home2/dlr1974u/public_html/wp-includes/PHPMailer/SMTP.php line 388]
2023-07-28 11:31:15 SMTP ERROR: Failed to connect to server: Connection refused (111)
SMTP Error: Could not connect to SMTP host. Failed to connect to server