Cisco Secure Email Encryption Service (CRES) Informational Notice

What: Customers may encounter difficulties when submitting or reporting messages using the Cisco Secure Email Submission Add-in.

Expected Impact: This issue may affect Exchange Online accounts, while Exchange on-premises accounts should function without any issues.

Recommendation: Please refer to the Troubleshooting section in the User Guide for Cisco Secure Email Submission Add-in for available workarounds.
https://www.cisco.com/c/dam/en/us/td/docs/security/email_encryption/add-ins/submission/10-0/submission-add-in-user-guide.pdf

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If you have any urgent questions about this maintenance or the possible impact, please contact Cisco TAC: http://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html