Cannot Send Messages in ThunderBird- Call +1-855-785-2511

Cannot Send Messages

If you cannot send messages, this page provides a series of steps you can use to check for common problems.

Table of Contents

  • Verify your SMTP outgoing email settings
  • Verify the correct SMTP Server is being used
  • Verify that your outgoing email is not being blocked
  • Delete SMTP Password
  • Reset SMTP Password
  • If this list doesn’t help
  • More resources

Verify your SMTP outgoing email settings if you cannot  Send Messages

  • Tools|Account Settings… and then select Outgoing Server (SMTP) from the bottom of the list on the left side of the panel. Check that the settings are the same as documented on the mail settings article for your mail provider on support.mozillamessaging.com Gmail, Yahoo,Comcast, Hotmail, Sympatico) OR
  • If there is no support.mozillamessaging.com article with your specific mail provider’s mail settings then look for an SMTP mail settings article on the mail provider’s site. This is usually in the support section of their website; searching for “mail settings” or “SMTP” will usually find it. Check that your Thunderbird settings match the documented settings.
  • If you still cannot send messages you can call Toll Free Number  +1-855-785-2511

 

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Verify the correct SMTP Server is being used

  • Tools|Account Settings… Verify that you are using the right SMTP server for the email address. Most of the time you cannot send messages from one account provider using another account provider’s service. For example, you cannot send message from “joe@gmail.com” through Yahoo’s SMTP server.

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Verify that your outgoing email is not being blocked

Verify that your outgoing email is not being blocked by your firewall, anti-virus software or your Internet Service Provider:

  • Try briefly turning both anti-virus and firewall off, sending a test email and turning them on and sending another test email.
  • Many ISPs block outgoing email on port 25. You may have to switch to another port (e.g. 587 or 465). Contact your ISP’s support to see if they are blocking your outgoing email port.

Cannot send emails using Mozilla Thunderbird

The most common reasons not to be able to send emails are:

* Incorrect Thunderbird settings;
* Blocked port 25 by the Internet Service provider.

To resolve the problem you should try to:

1. Make sure you are using the correct Thunderbird settings:

* Incoming mail server (POP3/IMAP server): mail.yourdomain.com
* Outgoing mail server (SMTP server): mail.yourdomain.com
* Username: the full e-mail address like email@yourdomain.com
* SMTP authentication must be enabled for the login to be successful.

A common mistake is to leave “My SMTP server requires authentication checkbox” unchecked. This option should be always enabled, since SiteGround servers require such authentication.

2. Try using the alternative TCP port 2525 for the SMTP server. For more information you can check ourThunderbird tutorial.

If you are having problems with your email, you may contact your host for assistance. SiteGround provides the best email hosting and we will assist you with any email issues you may have.

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