check before: 2019-09-30
Product:
Exchange, Office 365 general
Platform:
World tenant, Online
Status:
Launched
Change type:
Links:
Details:
We’re updating the DKIM key size available to Office 365 customers from the current 1024-bit to support 2048-bit key size. In order to enhance the security of our customers, we're increasing the default DKIM key size to 2048-bit keys, and all customers will benefit from this change. If you already have your default or custom domain DKIM enabled in Office 365, it will automatically be upgraded from 1024-bit to 2048-bit at your next DKIM configuration rotation date. The DKIM configuration can be managed through the Get-DkimSigningConfig cmdlet, available through an Exchange PowerShell Admin session.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
General Availability
Created:
2019-10-19
updated:
2020-07-03
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Last updated 1 year ago