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Cisco Bug: CSCvh99516 - Ironport-PHdr header causing delivery problems

Last Modified

Nov 14, 2019

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases


Description (partial)

Messages are being rejected for too many header lines.
The "IronPort-PHdr" header within the message is properly folded but contains more than 1000 lines.

Long Ironport-PHdr headers have been known to occur on messages with large numbers of recipients.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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