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I have Thunderbird installed on two computers and I cannot get TB to send emails.

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I have Thunderbird installed on two computers and I cannot get TB to send emails. I can receive email but cannot send. My provider is Spectrum and I have gone to their website and filled in TB with Spectrums info but I still can't send. Do you have step by step instructions on properly filling in my information into TB? Thank you. Sam

I have Thunderbird installed on two computers and I cannot get TB to send emails. I can receive email but cannot send. My provider is Spectrum and I have gone to their website and filled in TB with Spectrums info but I still can't send. Do you have step by step instructions on properly filling in my information into TB? Thank you. Sam

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The server name depends on the domain of your email address, but all have these same settings:

port 587, STARTTLS security, authentication = normal password, User Name = email address

https://www.spectrum.net/support/internet/mobile-email-setup