p5-Email-* ports

[n dhert]

My daily ports upgrade check told me:

libvorbis-1.2.3,3                   <   needs updating (index has 1.2.3_1,3)
p5-Email-MIME-1.902                 <   needs updating (index has 1.902_1)
p5-Email-MIME-Attachment-Stripper-1.31.6  <   needs updating (index has
1.31.6_1)
p5-Email-MIME-Creator-1.455         !   Comparison failed
p5-Email-MIME-Modifier-1.444        !   Comparison failed
p5-Email-Reply-1.202                <   needs updating (index has 1.202_1)
p5-Email-Simple-Creator-1.424       !   Comparison failed
What's this Comparaison failed?
portupgrade did OK for libvorbis but not for the 6 p5-Email-* ports:

--->  ** Upgrade tasks 4: 1 done, 3 ignored, 3 skipped and 0 failed
--->  Listing the results (+:done / -:ignored / *:skipped / !:failed)
        - mail/p5-Email-MIME-Creator (port directory error)
        - mail/p5-Email-MIME-Modifier (port directory error)
        - mail/p5-Email-Simple-Creator (port directory error)
        + audio/libvorbis (libvorbis-1.2.3,3)
        * mail/p5-Email-MIME (p5-Email-MIME-1.902)
        * mail/p5-Email-Reply (p5-Email-Reply-1.202)
        * mail/p5-Email-MIME-Attachment-Stripper
(p5-Email-MIME-Attachment-Stripper-1.31.6)
--->  Packages processed: 1 done, 3 ignored, 3 skipped and 0 failed
What wrong and how to remedy?