We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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 error message

  • 5 replies
  • 1 has this problem
  • 23 views
  • Last reply by sfhowes

more options

I set up Thunderbird on my new desktop and downloaded a bunch of messages. The last message is from Feb 8 - the day I set Thunderbird up on my new desktop (so it worked at first). When I recently checked, I found this error message:

"An error occurred with the POP3 mail server. Mail server secure267.inmotionhosting.com responded: "

However, I THOUGHT I was using IMAP. I've checked the server settings and they work on my Android phone.

Please advise what I'm doing "rong."

And thanx for volunteering to help!

==Jeff Wynn

I set up Thunderbird on my new desktop and downloaded a bunch of messages. The last message is from Feb 8 - the day I set Thunderbird up on my new desktop (so it worked at first). When I recently checked, I found this error message: "An error occurred with the POP3 mail server. Mail server secure267.inmotionhosting.com responded: " However, I THOUGHT I was using IMAP. I've checked the server settings and they work on my Android phone. Please advise what I'm doing "rong." And thanx for volunteering to help! ==Jeff Wynn

Chosen solution

The Server Type is POP, but you have it connecting through the IMAP port 993. If you have any mail in the POP account to save, copy it to subfolders of Local Folders, then select the account in the left pane of Account Settings, then Account Actions, Remove Account, then Account Actions, Add Mail Account, and select IMAP in the setup wizard. Click Manual config. if the settings aren't detected.

http://kb.mozillazine.org/Convert_a_POP_account_to_a_IMAP_account

Read this answer in context 👍 0

All Replies (5)

more options

Please post your settings so we can give feedback. You would need to use port 993 to use IMAP and have mutual access with phone, which also would need 993 for port.

Modified by david

more options

Thanx for the quick reply.

Yes, I am using port 993. However, I just noticed that it says "Server Type: POP Mail Server"

How do I change this to IMAP? Could that be the problem?

==Jeff

more options

It could be. Please post the full server setting info so we can confirm. Look at wording in tools>account settings>server settings. The top line specifies type of server, IMAP or POP. If it says POP and you meant IMAP, then you need to remove that account and set up a new one. That is, you cannot change one to the other.

more options

Here are my current server settings. I hope the JPG makes it this time - last time it would never stop loading.

How do I cleanly delete the POP setup?

Plz remind me how to set up an IMAP correctly this time. Thanx again for the quick response.

==Jeff

more options

Chosen Solution

The Server Type is POP, but you have it connecting through the IMAP port 993. If you have any mail in the POP account to save, copy it to subfolders of Local Folders, then select the account in the left pane of Account Settings, then Account Actions, Remove Account, then Account Actions, Add Mail Account, and select IMAP in the setup wizard. Click Manual config. if the settings aren't detected.

http://kb.mozillazine.org/Convert_a_POP_account_to_a_IMAP_account