Email troubleshooting
Fix outbound and inbound email delivery for Managed Email, Google Workspace, Microsoft 365, or SMTP.
Problem
Email sends fail, bounce, or never arrive in the Zyelra inbox.
Cause
- Email provider not connected or authorization expired
- SMTP host, port, or credentials incorrect
- From address not allowed by the provider
- Messages bouncing at the recipient
Solution
- Reconnect the email integration under Settings → Messaging & Delivery → Email
- For SMTP, re-check host, encryption, username, and password
- Send to a mailbox you control and inspect delivery status
- Follow the provider guide for Managed Email, Google Workspace, Microsoft 365, or SMTP
When to contact support
Contact support if OAuth reconnects successfully but Zyelra still cannot send or receive on that mailbox.
Next step
Jump to another problem area if this guide did not resolve the issue.
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