v4.20.2 - 2025-07-08

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See 'Benefactor Circle add-on' for details about these features and how you can benefit from them with a Benefactor Circle license.

Changed

• Update dependency PreMailer.Net to v2.7.2.
• Update Outlook add-in dependency @azure-msalbrowser to v4.14.0.

Added

Removed

Fixed

• Update handling of the '@' character in signatures names. Microsoft no longer allows '@' in roaming signature names as it is reserved for internal use, and Microsoft Outlook will follow soon.
  • Add '@' to the list of invalid characters for signatures names as documented in sample INI files. The new complete list of invalid characters is '\/:"*?><,|@'.
  • Convert all invalid characters to '_', but '@' to '_at_'.
  • Only keep the '@' character where it is required for Microsoft internal use in roaming signature names.

File hashes and code signing

• SHA256 hash of 'Set-OutlookSignatures_v4.20.2.zip': 9F92CC325560E978E762AAA947DB8F72CB4EC2A00B5FC4370C89F5191F15D75C
• See 'hashes.txt' in 'Set-OutlookSignatures_v4.20.2.zip' for the hash value of every single file in the release.
  • Compare these hashes with the output of 'Get-ChildItem -Recurse | Get-FileHash -Algorithm SHA256'.
• Files are code signed with ExplicIT Consulting's Extended Validation (EV) certificate.
  • Check the signature with 'Get-ChildItem -Include '*.ps*1', '*.dll' -Recurse | Get-AuthenticodeSignature'.