Mozilla Thunderbird is one of the best email service providers known for providing the best features like multi-account support, privacy, customization, and more. Thunderbird shares the most reliable emailing experience with its users, however, from time to time, an incredible email service provider like Thunderbird can also have technical errors.

There could be a number of possible reasons due to which Thunderbird may not receive emails. Incorrect SMTP server settings, or IMAP server settings causing the trouble. The installed Firewall on your system can also cause the Thunderbird not receiving some emails. Or, you may have enabled SSL filtering in ESET that may stop the emails from functioning.

If you want to know more about Thunderbird Email Problems & its solutions, then you can visit the official blog: https://emailspedia.com/thunderbird-is-not-receiving-emails/