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e-mail account set up wrong password

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I've tried several times to change my password on an e-mail account I allready configured in Thunderbird.

It is a gmail-account, Thunderbird says my password is not correct. Therefore I changed my password, but this doesn't solve the problem. 

Can anybody help me, what do I have to do?

I've tried several times to change my password on an e-mail account I allready configured in Thunderbird. It is a gmail-account, Thunderbird says my password is not correct. Therefore I changed my password, but this doesn't solve the problem. Can anybody help me, what do I have to do?

Chosen solution

You may have the same problem I was having - when using POP with Gmail, you need to go into your Gmail account and enable "allow less secure apps" or it will not recognize your password.

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What are you using? OAuth2, an application specific password, a regular password? Two factor authentication?

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I think it is OAuth2, but don't know for sure. I've removed the e-mail account and tried to add it again. In the image you can see the error (in dutch)

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Chosen Solution

You may have the same problem I was having - when using POP with Gmail, you need to go into your Gmail account and enable "allow less secure apps" or it will not recognize your password.

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I changed "allow less secure apps" and now it is solved. Thanks Pattit!