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

The POP3 mail server (incoming.yahoo.verizon.net) does not support UIDL or XTND XLST

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by dwalby

more options

The POP3 mail server (incoming.yahoo.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. *** What can I do to stop this, server is Verizon Yahoo? Thank you all

The POP3 mail server (incoming.yahoo.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. *** What can I do to stop this, server is Verizon Yahoo? Thank you all

Chosen solution

Get a mail provider that is capable of delivering a mail service. Yahoo apparently are not and simply ignore all attempts to penetrate to corporate wall. Verizon bought them, merged that mess with AOL and not we have that I am please to say is not my circus.

I would ask Verizon why their mail service is simply broken.

You choices are; 1. Do not leave mail on the server using POP 2. Use IMAP instead of POP 3. Vote with your feet and get a mail provider like GMX that appears to be capable of delivering a simple mail system that works.

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

Get a mail provider that is capable of delivering a mail service. Yahoo apparently are not and simply ignore all attempts to penetrate to corporate wall. Verizon bought them, merged that mess with AOL and not we have that I am please to say is not my circus.

I would ask Verizon why their mail service is simply broken.

You choices are; 1. Do not leave mail on the server using POP 2. Use IMAP instead of POP 3. Vote with your feet and get a mail provider like GMX that appears to be capable of delivering a simple mail system that works.

more options

I have been encountering this same problem on two different computers running T-bird. I think I've found the solution since its worked on both machines several different times. The simple solution is to delete a bunch of e-mails and restart T-bird, but the underlying problem appears to be associated with the cache usage. Go into Tools/Options, and then select the Advanced tab. Look at the cache usage info, it will probably show that your cache usage is at the limit. Either clear the cache or increase the cache allocation, then restart T-bird.