• Emails fail to send / Sending error/ Emails stay in drafts
• I cannot send/receive emails anymore
• I can't receive or send email anymore
• Request is throttled. Suggested backoff time ... issue
• Microsoft 365 - SMTP authentication unsuccessful error when sending emails
• Yahoo/AOL/AT&T/Verizon account is not downloading/syncing messages
• Cannot send emails / Error sending email / Emails go to drafts
• When I reply an email, it disappears from the Inbox
• "Server authentication failed" message (Yahoo, Hotmail, etc)
• Error sending mail from AOL
• Error sending mail: 'A call to SSPI failed, see inner exception'
• Issues sending email from Google Apps/Suite domain alias
• Long delay in checking incoming email
• Proxy or firewall blocking Mailbird
• Why am I getting a server certificate error?