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thunderbird e-mail stopped working since update to version 78 (No e-mails coming in and none being able to send

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SuMo Bot
SuMo Bot

Error message comes up

An error occured while sending mail unable to establish a secure link with out going server (SMTP) smtp-mail.outlook.com using STARTTLS since it doesent advertize that feature switch off STARTTLS for that server or contact service provider

Error message comes up An error occured while sending mail unable to establish a secure link with out going server (SMTP) smtp-mail.outlook.com using STARTTLS since it doesent advertize that feature switch off STARTTLS for that server or contact service provider

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sfhowes
sfhowes
  • Top 25 Contributor

The outlook.com smtp server does support SATRTTLS on port 587, so do you have some other program scanning secure connections, e.g. Avast, or are you connecting through a VPN?

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