Lost / forgotten license key
Installation and Licensing Issues
Adding or Importing Account
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Unable to sign into Google's app in Mailbird
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Authentication Failed - Unable to add email account
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An error occurred authorizing Mailbird to access a Microsoft email account.
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AOL / Yahoo possible authentication issue
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Gmail authorizing issue when adding the account to Mailbird
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Yahoo - Incorrect username or password
Issues Sending or Receiving Emails
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How to prevent Windows 10 Defender from blocking Mailbird
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Emails fail to send / Sending error/ Emails stay in drafts
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"User is authenticated but not connected" issue with Outlook accounts
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Loading is taking longer than usual - error message
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Too many simultaneous connections
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Message blocked due to spam content in the message
Display Issues
General and Misc
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How to check whether you have an IMAP or POP3 email account
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Mailbird freezes or hangs
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Contacts are incorrectly added to the Mailbird Contacts list
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How to repair Mailbird
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My deleted email suddenly reappear in my inbox
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Database version mismatch error