Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Thunderbird rate my reply messages as spam

more options

When I send some messages in Thunderbird they are stopped as spam, which they are not! In most cases I cannot answere an incoming mail by using the reply function but must set up a new mail. Telia, my mail server provider in Sweden, has no outgoing spam filter. I can send any type of mail or reply mail from my Telia Webmail but not by using Thunderbird. I have used Thunderbird for more than 15 years without problems. This problem started one month ago. What kind of setting can solve this problem?

When I send some messages in Thunderbird they are stopped as spam, which they are not! In most cases I cannot answere an incoming mail by using the reply function but must set up a new mail. Telia, my mail server provider in Sweden, has no outgoing spam filter. I can send any type of mail or reply mail from my Telia Webmail but not by using Thunderbird. I have used Thunderbird for more than 15 years without problems. This problem started one month ago. What kind of setting can solve this problem?

All Replies (2)

more options

Thunderbird does nothing with regard to outgoing messages being considered SPAM. You compose it and Thunderbird sends it. Some antivirus and internet security suites however do mess with outgoing mail and try and make themselves useful by blocking legitimate mail as SPAM.

more options

Thanks, you are right! I removed the AVG Free antivirus program and then my Thunderbird works without problems. Thanks for your advice!