Cannot send via SMTP

Hello, hopefully you can give me some help with this issue. I have successfully connected other websites to this mail server via smtp, but with one of those i get this error when trying test it:

There seems to be no requests received by the mail server.

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

Source

WP Mail SMTP

/home/napxzuso/public_html/v3/wp-content/plugins/wp-mail-smtp/src/Admin/Pages/TestTab.php (line: 345)

Backtrace:
[0] wp_mail called at [/home/napxzuso/public_html/v3/wp-content/plugins/wp-mail-smtp/src/Admin/Pages/TestTab.php:345]
[1] WPMailSMTP\Admin\Pages\TestTab->process_post called at [/home/napxzuso/public_html/v3/wp-content/plugins/wp-mail-smtp/src/Admin/ParentPageAbstract.php:265]
[2] WPMailSMTP\Admin\ParentPageAbstract->process_actions called at [/home/napxzuso/public_html/v3/wp-includes/class-wp-hook.php:308]
[3] WP_Hook->apply_filters called at [/home/napxzuso/public_html/v3/wp-includes/class-wp-hook.php:332]
[4] WP_Hook->do_action called at [/home/napxzuso/public_html/v3/wp-includes/plugin.php:517]
[5] do_action called at [/home/napxzuso/public_html/v3/wp-admin/admin.php:175]

Also further testing indicated:

Versions:
WordPress: 6.1.1
WordPress MS: No
PHP: 7.4.33
WP Mail SMTP: 3.7.0

Params:
Mailer: smtp
Constants: No
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: mail.xxxxx.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: bool(true)
SMTPAuth: bool(true)

Server:
OpenSSL: OpenSSL 1.1.1p 21 Jun 2022
Apache.mod_security: No

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:
2023-02-01 08:46:26 Connection: opening to mail.xxxxxxxx.com:587, timeout=300, options=array()

2023-02-01 08:46:27 Connection failed. Error #2: stream_socket_client(): unable to connect to mail.xxxxxxx.com:587 (Connection refused) [/home/napxzuso/public_html/v3/wp-includes/PHPMailer/SMTP.php line 389]

2023-02-01 08:46:27 SMTP ERROR: Failed to connect to server: Connection refused (111)

SMTP Error: Could not connect to SMTP host. Failed to connect to server

• This topic was modified 3 years, 4 months ago by bordo.
• This topic was modified 3 years, 4 months ago by bordo.
• This topic was modified 3 years, 4 months ago by bordo.
• This topic was modified 3 years, 4 months ago by bordo.