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

Thunderbird DELETES all messages when new ones arrive

more options

When new emails arrive in my inbox, Thunderbird DELETES ALL of yesterday's messages, whether they have been read or not. I have gone through all settings options and indicated NO messages are to be deleted. They do not show up in junk or trash. NOTHING is saved unless I tuck it in to a folder. If I delete it, it is saved in the trash until I do a final delete. VERY frustrating and has gone on for months. I cannot trust Thunderbird on my laptop and only rely on my desktop, where the settings seem fine. I set the laptop with al the same options.

When new emails arrive in my inbox, Thunderbird DELETES ALL of yesterday's messages, whether they have been read or not. I have gone through all settings options and indicated NO messages are to be deleted. They do not show up in junk or trash. NOTHING is saved unless I tuck it in to a folder. If I delete it, it is saved in the trash until I do a final delete. VERY frustrating and has gone on for months. I cannot trust Thunderbird on my laptop and only rely on my desktop, where the settings seem fine. I set the laptop with al the same options.

All Replies (1)

more options

Various causes and remedies are covered here: http://kb.mozillazine.org/Disappearing_mail Have you tried compacting the Inbox? Repairing it?