Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Mozilla サポートの検索

サポート詐欺に注意してください。 私たちはあなたに通話やショートメッセージの送信、個人情報の共有を求めることはありません。疑わしい行為を見つけたら「迷惑行為を報告」からご報告ください。

詳しく学ぶ
このスレッドは閉じられ、アーカイブに保管されました。 必要であれば新たに質問してください。
Locked アーカイブに保管済み

Error message but unable to implement fix in server settings

Thunderbird その他
Stans replied 6 年前
SuMo Bot
SuMo Bot

Received this error message when I tried to download new email with Thunderbird this morning: "The POP3 mail server (pop.verizon.net) does not support UIDL or XTND XLST, which are required to implement the ``Leave on Server, ``Maximum Message Size or ``Fetch Headers Only options. To download your mail, turn off these options in the Server Settings for your mail server in the Account Settings window." There is no where in my Server settings that even has these options, much less to turn them off. Fetch headers only was off already, & no maximum message size set. When I turned off Leave on Server, all the new email downloaded, but all my email disappeared from other devices, so I turned it back on. How do I correct this while retaining the Leave on Server setting?

Received this error message when I tried to download new email with Thunderbird this morning: "The POP3 mail server (pop.verizon.net) does not support UIDL or XTND XLST, which are required to implement the ``Leave on Server'', ``Maximum Message Size'' or ``Fetch Headers Only'' options. To download your mail, turn off these options in the Server Settings for your mail server in the Account Settings window." There is no where in my Server settings that even has these options, much less to turn them off. Fetch headers only was off already, & no maximum message size set. When I turned off Leave on Server, all the new email downloaded, but all my email disappeared from other devices, so I turned it back on. How do I correct this while retaining the Leave on Server setting?

すべての返信 (1)

Stans
Stans

https://support.mozilla.org/en-US/questions/1221957

SuMo Bot
SuMo Bot 質問者

This question has been locked because the original author has deleted their account. While you can no longer post new replies, the existing content remains available for reference.