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An error occurred while sending mail.

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I am receiving this error message each time I attempt to send an email. How/why do I switch my email client to use SASl authentication. Not at all sure what this means.

An error occurred while sending mail. The mail server responded: 4.7.1 : Recipient address rejected: Policy Rejection- Email send quota has been exceeded for your host. Please switch your email client to use SASL authentication --- contact support if unsure how to..

I am receiving this error message each time I attempt to send an email. How/why do I switch my email client to use SASl authentication. Not at all sure what this means. An error occurred while sending mail. The mail server responded: 4.7.1 : Recipient address rejected: Policy Rejection- Email send quota has been exceeded for your host. Please switch your email client to use SASL authentication --- contact support if unsure how to..

Chosen solution

Hopefully all you need to do is change the e-mail settings to use SSL/TLS (security protocols). If you know how to do this, please do. If you need help with this, then please provide your Troubleshooting Information from Thunderbird: Thunderbird menu: Help: Troubleshooting Information Click the "Copy text to clipboard" button. Paste (Ctrl-V), the text into your response here.

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Chosen Solution

Hopefully all you need to do is change the e-mail settings to use SSL/TLS (security protocols). If you know how to do this, please do. If you need help with this, then please provide your Troubleshooting Information from Thunderbird: Thunderbird menu: Help: Troubleshooting Information Click the "Copy text to clipboard" button. Paste (Ctrl-V), the text into your response here.

Modified by user1121639