Authentication Problems

• How to Fix the “Server Authentication Failed” Error in Mailbird for Mac
• Microsoft 365 - SMTP authentication problems in Mailbird for Mac
• Troubleshooting Authentication Issues in Mailbird for Mac

Issues Sending or Receiving Emails

• I am unable to send emails - GoDaddy and Mailbird for Mac
• How to Resolve Server Certificate Errors in Mailbird for Mac
• Emails fail to send / Emails remain in drafts in Mailbird for Mac

General and Misc

• Fixing the "Internal Database Error" in Mailbird for Mac
• Blurry Text on External Monitors (Mailbird for Mac)
• Enabling IMAP for Gmail accounts in Mailbird for Mac
• Why Emails May Appear as "Read" or Disappear in Mailbird for Mac
• Yahoo - Incorrect username or password in Mailbird for Mac

App Issues

• Long delays when receiving incoming emails in Mailbird for Mac