Kyocera Scan to Email Error 1104
Kyocera error 1104 is a reviewed Scan to Email/SMTP condition: the configured mail domain is unreachable because of settings or restrictions. Use this meaning only when the failed operation is the Kyocera Scan to Email workflow.
Error meaning
The configured mail domain is unreachable because of settings or restrictions.
This meaning is tied to the reviewed family/platform and subsystem below; do not reuse the number by itself on a different printer family or protocol.
Applies to
Kyocera Scan to Email error-code platform
- ECOSYS MA/M552x multifunction families documented by Kyocera
- TASKalfa multifunction devices using the reviewed Scan to Email error table
Common formatting
These are formatting/lookup aliases for this reviewed condition, not separate error pages.
- 1104
- Kyocera 1104
- send error 1104
- scan to email 1104
What usually causes it
- SMTP settings may point to a domain the device cannot reach.
- Network or relay restrictions may block the configured mail domain.
- The mail environment may require a different permitted relay/service.
What to try
Review the SMTP server and domain settings
Confirm the printer is using the organization's intended mail service.
Check network restrictions
Make sure the printer's network is permitted to reach that service.
Confirm relay requirements
Ask the mail administrator whether the device must use a specific relay, port, or authenticated route.
Retry after correcting the allowed path
Use the same scan so the result tests the actual change.
After each corrective action
Retry the same operation that produced 1104. If it now works, stop there rather than changing unrelated printer, network, or service settings.
If the code returns
A repeated 1104 normally needs the mail/network administrator to reconcile the printer's SMTP setup with the organization's routing and relay policy.
When service may be needed
These settings affect network or mail security. If the required server, authentication, or certificate values are managed by your organization, have the administrator make the change rather than guessing.
Continue with guided troubleshooting
If the printer still is not working after the reviewed checks, carry this verified error context into the guided troubleshooter.
Related information
Verified source
Official Kyocera Document Solutions Scan to Email error-code overview, updated 2026-06-04; code meaning is scoped to the Scan to Email/SMTP context.