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Outgoing smtp-server blocked

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  • Last reply by sfhowes

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I have three google-accounts via my Thunderbird (91.4.1). Suddenly I can no longer send mails from my first account. I can still use my second account for outgoing mails, curious since their SMTP-settings look identical. My second account suddenly stopped receiving incoming mails although configured exactly as my first one. Happily I have a third google-account that works both ways but how to securing the functioning of my first ones?

I have three google-accounts via my Thunderbird (91.4.1). Suddenly I can no longer send mails from my first account. I can still use my second account for outgoing mails, curious since their SMTP-settings look identical. My second account suddenly stopped receiving incoming mails although configured exactly as my first one. Happily I have a third google-account that works both ways but how to securing the functioning of my first ones?

Chosen solution

Do you have each account set to send on an smtp server with the same User Name as the sending account, i.e. with 3 accounts, there should be 3 smtp servers, each with the same settings (smtp.gmail.com, 465, SSL/TLS, OAuth2) but different User Names (email address)?

https://support.mozilla.org/en-US/questions/1324013

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Chosen Solution

Do you have each account set to send on an smtp server with the same User Name as the sending account, i.e. with 3 accounts, there should be 3 smtp servers, each with the same settings (smtp.gmail.com, 465, SSL/TLS, OAuth2) but different User Names (email address)?

https://support.mozilla.org/en-US/questions/1324013