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Cannot send E-mail

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When I try to send e-mail I get I get the message Authentication required verify your e-mail account in settings How and where do I verify account??

When I try to send e-mail I get I get the message Authentication required verify your e-mail account in settings How and where do I verify account??

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Open Account Settings

In Thunderbird, click the ≡ menu (three lines in the top right)

Go to Account Settings.

In the left column, scroll down to Outgoing Server (SMTP) and click it.

You’ll see a list of SMTP servers. Highlight the one used for your account and click Edit.

Verify your SMTP settings by checking these against your email provider’s documentation:

Gmail, SMTP settings

Outlook.com, POP/IMAP/SMTP settings

iCloud Mail, IMAP/SMTP settings

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