This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I can receive EMail in Thunderbird but not send

  • 1 reply
  • 1 has this problem
  • 73 views
  • Last reply by sfhowes

more options

My server EMail 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 an unknown reason. Please verify that your SMTP server settings are correct and try again, or contact your network administrator.

My server EMail 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 an unknown reason. Please verify that your SMTP server settings are correct and try again, or contact your network administrator.

Chosen solution

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 full email address

https://forums.dathorn.com/showthread.php?3890-SSL-Mail-Access-mail-gzo-com-has-no-assigned-ip-address

Read this answer in context 👍 0

All Replies (1)

more options

Chosen Solution

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 full email address

https://forums.dathorn.com/showthread.php?3890-SSL-Mail-Access-mail-gzo-com-has-no-assigned-ip-address