Sisimai: Mail Analyzing Interface

Release Notes

Sisimai 5.4.1

2025/08/31

Sisimai 5.4.1 is now available. The main changes in this version are a fix for a nasty bug in the Ruby version caused by an incorrect data type and support for changed error codes in Gmail. Changes specific to the Perl version of Sisimai are indicated by Perl at the beginning of each item, changes specific to the Ruby version of Sisimai are indicated by Ruby, and changes specific to the Go version of Sisimai are indicated by Go.

And then, Sisimai 5 includes many changes that are not compatible with Version 4, so please check the Perl or Ruby version of your environment before installing or upgrading.

Changes

  • Ruby A critical bug in the Sisimai::Rhost::Microsoft class has been fixed, which was caused by defining a value as a string instead of its intended integer type. Thanks to @kawai-markerise #354 #355
  • Go Sisimai could be built with Go 1.25. #163 #164
  • Perl Sisimai works on Perl 5.42. #592
  • Sisimai now support some of the error codes of Gmail changed in August. #595 #352 #158
  • Added an implementation to treat privaterelay.appleid.com, used by Apple's Hide My Email, as an Apple domain. #596 #354 #155