Understanding 'Permission Denied for Unknown Submitter'
What does 'Permission denied for unknown email submitter' mean in Zendesk?
'Permission denied for unknown email submitter' occurs when emails are received from unregistered users in Zendesk. If your system requires user registration, emails from unknown users are suspended. To prevent this, consider importing your customer base before they submit tickets. For more details, see the originalZendesk article.
More related questions
Why are my automated response emails getting suspended in Zendesk?
Automated response emails are often suspended in Zendesk because they are identified as auto-generated messages. Zendesk does not support the unsuspended flow of automated emails, including those from custom-built ticket forms. This is due to the…
What should I do if my email is detected as spam in Zendesk?
If your email is detected as spam in Zendesk, it might be flagged by Zendesk's email detection filters or sent from a suspended user. To resolve this, check if the sender is suspended and unsuspend them if necessary. Recovering the suspended ticket…
How can I resolve the 'Email authentication failed' suspension in Zendesk?
The 'Email authentication failed' suspension occurs when an email is spoofed or fails DMARC authentication. To resolve this, ensure the sender is permitted to send mail from your domain. Configuring SPF and DKIM for the sending source or disabling…
Why is my email marked as 'Detected as email loop' in Zendesk?
Emails are marked as 'Detected as email loop' in Zendesk when a large number of emails are received from a single sender in a short period. This can also happen if emails are sent from an address equal to your default Reply To address. To prevent…
How can I handle 'Email is too large' suspensions in Zendesk?
When an email is suspended due to being too large, it means the email body exceeds Zendesk's maximum size limit. To resolve this, the user should resend the email with a smaller size. Note that this limit applies to the email body itself and is…
What does 'Sender or domain is on the blocklist' mean in Zendesk?
The 'Sender or domain is on the blocklist' suspension occurs when a ticket comes from a blocked address or domain. To accept these tickets, remove the address or domain from the blocklist. For more information, see the original [Zendesk…
Why are emails from system users always suspended in Zendesk?
Emails from system users, such as those from addresses beginning with mail-daemon@ or postmaster@, are always suspended in Zendesk. This is because they are assumed not to be intended as support requests. To send these emails, use non-system…
How can I manage 'Malicious pattern detected' suspensions in Zendesk?
A 'Malicious pattern detected' suspension indicates that a message matched a pattern associated with spam or phishing. If important messages are suspended for this reason, contact Zendesk Customer Support for assistance.
What does 'User must sign up to submit email, user notified' mean in Zendesk?
This suspension occurs when an account requires end users to register and verify their email before submitting tickets. Once verified, their suspended ticket will automatically convert into a support ticket without admin intervention.
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