Cisco Bug: CSCzv27747 - DMARC outbound - DKIM signing to not use Sender info
Jan 07, 2019
- Cisco Email Security Appliance
Known Affected Releases
-000 8.0.0-197 8.0.1-023 8.5.6-000 9.7.2
Symptom: Recipient system with DMARC enabled considers a DKIM signed email from the ESA as unauthenticated: 5.7.1 Unauthenticated email from example.com is not accepted due to domain Conditions: The email has a 'From:' and a 'Sender:' header. By default, the ESA will use the 'Sender:' header for signing when a DKIM profile matches. DMARC requires the 'From:' header to be signed.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases