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Receive but cannot send emails

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cyager
cyager
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My primary email is with Comcast (aka Xfinity)

A short while ago, even though I was successfully receiving emails, I am unable to send emails from that account. I've verified my SMTP settings, and nothing has changed in any of my account configurations. The only way I am able to send or respond to emails is by using Comcast's webmail interface.

I've been happy with Thunderbird for many, many years, but am very frustrated. I'd appreciate any assistance.

My primary email is with Comcast (aka Xfinity) A short while ago, even though I was successfully receiving emails, I am unable to send emails from that account. I've verified my SMTP settings, and nothing has changed in any of my account configurations. The only way I am able to send or respond to emails is by using Comcast's webmail interface. I've been happy with Thunderbird for many, many years, but am very frustrated. I'd appreciate any assistance.
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david
david
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Does this link help? https://support.mozilla.org/en-US/questions/1408525