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New T'bird install and I can't add email account. Message reads Error Creating Account : Incoming Server Already Exists.

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I have six gmail accounts that I access via Mozilla Thunderbird.

Suddenly, for no obvious reason, one kept asking me for login details to allow T'bird to access the relevant Google account. I then had a choice of pressing Deny or Allow.

I pressed Allow, but still couldn't send or receive mail from that one account!

I re-installed T'bird and have version 38.5.0 because I'm still on Windows XP with this machine.

No joy.

I then deleted the account and then went to Add Mail Account.

I get a couple of errors during my failed attempts!!

Usually, when it's checking the password during Mail Account Setup, I'm asked to sign in with my Google Account. I do that and get the message; Mozilla Thunderbird wants to access your Google account, and I allow it to do so.

Meanwhile Thunderbird's Mail Account Setup is still checking the password, and it does so forever!

It's was checking for over an hour before I hit cancel.

Occasionally get this message : Error Creating Account : Incoming Server Already Exists.

I don't know what that means, sorry.

I have double checked that the deleted account is deleted ...................... and it definitely is!

All my other accounts are absolutely fine and the one that I couldn't use works fine when accessed via Gmail in Google.

I'd love to be able to add it as a new email account in Thunderbird without having the authentification issues that suddenly appeared from nowhere and without warning.

Oh, the problem account works fine on my laptop (Windows 10), just not on my desktop (Windows XP). But I can't believe it's an XP issue because my other accounts are unaffected.

Oh, and I AM putting in the correct login details.

Also, I changed the password for the problem account just a few days ago, but I'm sure that's not relevant.

2 or 3 days later and I still have the problem ............................... so I took it a little bit further, DOH!

Uninstalled T'bird, installed a fresh copy of T'bird 38.5.0 and now I can't access ANY of my accounts ............................... because they don't appear and I can't add them because I keep ending up with the same ******* message!


                                                                                                             Error Creating Account : Incoming Server Already Exists.


How can I possibly get past this?

Oh, emails are still accessible directly through gmail and still accessible on my laptop via Thunderbird.


Over to you guys, please!

I have six gmail accounts that I access via Mozilla Thunderbird. Suddenly, for no obvious reason, one kept asking me for login details to allow T'bird to access the relevant Google account. I then had a choice of pressing Deny or Allow. I pressed Allow, but still couldn't send or receive mail from that one account! I re-installed T'bird and have version 38.5.0 because I'm still on Windows XP with this machine. No joy. I then deleted the account and then went to Add Mail Account. I get a couple of errors during my failed attempts!! Usually, when it's checking the password during Mail Account Setup, I'm asked to sign in with my Google Account. I do that and get the message; Mozilla Thunderbird wants to access your Google account, and I allow it to do so. Meanwhile Thunderbird's Mail Account Setup is still checking the password, and it does so forever! It's was checking for over an hour before I hit cancel. Occasionally get this message : Error Creating Account : Incoming Server Already Exists. I don't know what that means, sorry. I have double checked that the deleted account is deleted ...................... and it definitely is! All my other accounts are absolutely fine and the one that I couldn't use works fine when accessed via Gmail in Google. I'd love to be able to add it as a new email account in Thunderbird without having the authentification issues that suddenly appeared from nowhere and without warning. Oh, the problem account works fine on my laptop (Windows 10), just not on my desktop (Windows XP). But I can't believe it's an XP issue because my other accounts are unaffected. Oh, and I AM putting in the correct login details. Also, I changed the password for the problem account just a few days ago, but I'm sure that's not relevant. 2 or 3 days later and I still have the problem ............................... so I took it a little bit further, DOH! Uninstalled T'bird, installed a fresh copy of T'bird 38.5.0 and now I can't access ANY of my accounts ............................... because they don't appear and I can't add them because I keep ending up with the same ******* message! Error Creating Account : Incoming Server Already Exists. How can I possibly get past this? Oh, emails are still accessible directly through gmail and still accessible on my laptop via Thunderbird. Over to you guys, please!