Policy
Set Maximum Certificate Size Limit for Signed Emails in Reply Scenarios.
Microsoft Office 5532.1000
Policy overview
Key metadata and intent for this policy.
This policy setting controls the maximum limit for the size of the stored certificate in Exchange server when replying to a digitally signed email using Outlook. If you enable this policy setting, you can configure the maximum limit for the size of the stored certificate, up to a maximum of 16384 kb. This helps to avoid issues where a reply to a digitally signed email may not be delivered or saved in the sent items due to large certificate sizes of the original sender. By disabling this policy setting, the maximum limit will be the default set at 12921 kb, limiting the ability of administrators to adjust the maximum size of the stored certificate. If you do not set the policy setting, it is treated as enabled and the default maximum limit for the size of the stored certificate is set at 12921 kb.
Registry values
How enabled and disabled states update the registry.
No explicit registry values are set for enabled or disabled states.
Policy elements
Inputs and configuration options exposed by this policy.
| Element | Type | Registry mapping | Constraints & behavior |
|---|---|---|---|
In bytes: ID L_SpecifyMaxCertLengthAllowedtoStampSpinID | decimal | HKCU\software\policies\microsoft\office\16.0\outlook\options\mail\maxcertlengthtostamp Type REG_DWORD | Range: 0 to 16384 |
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