error message - AUP#SNDR received on fwd email to service provider
How to avoid: Sending of the message failed. An error occurred while sending mail. The mail server responded: message rejected .
AUP#SNDR. Please check the message and try again.
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Was this the complete error message? That seems shorter than most. thank you
I was trying to forward a 'phishing' email to my service provider
the complete error message is:
Sending of the message failed. An error occurred while sending mail. The mail server responded: {...My Email} message rejected. AUP#SNDR. Please check the message and try again.
I found this on AI:
The error AUP#SNDR indicates that your email was rejected by the recipient's server due to a violation of their Acceptable Use Policy, often related to spam filtering or sender authentication issues. To resolve this, check your email content and ensure your SPF and DKIM records are correctly configured.
My guess is the phishing attachment may have generated it.
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