Work through this list before changing unrelated plugins.
Quick checks
- Is SMTPPai activated?
- Is the connection marked active?
- Is the From domain verified with the provider?
Auth and region errors
Invalid keys or the wrong SES region are the most common failures. Re-copy credentials and match the region exactly.
Still stuck?
Send a test, open the log entry, and share the provider response with support — that shortens diagnosis a lot.
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