I can receive emails in Thunderbird but not send

My email server account works fine, but when I use Thunderbird I get this message:
The message could not be sent using SMTP server mail.casaromawellness.com for some unknown reason. Please check that your SMTP server settings are correct and try again or contact your network administrator.

If your webhost is gzo.com, try these settings in tools/account settings/Outgoing Server (SMTP):

Server name: cpanel75.gzo.com
Port: 465
Connection security: SSL/TLS
Authentication: Normal password
User name: your e-mail address

https://forums.dathorn.com/showthread.php?3890-SSL-mail-access-mail-GZO-com-has-no-assigned-IP-address

Tags: Thunderbird

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