Garbled Subject Line in RT Emails to Other Recipients

Since our upgrade to 3.4.2, we have found that the subject line is
garbled in emails sent to Other Recipients (i.e. email addresses entered
into the CC field). Has anyone else had this problem?

Example 1:

RT Ticket Subject Line: Adding a CC to an RT Coment record does not send
an email

Email:Subject: Addig a a RT rcrd ds sd a ail
Date: Wed, 31 Aug 2005 18:45:19 -0700 (PDT)

Example 2:

RT Ticket Subject Line: Two Emails Being Sent to Email Address in CC
Field of RT Ticket

Subject: Tw Eails Big S Eail Addrss i Fild f RT Tick
Date: Thu 9/1/2005 1:38 PM

Cecilia Amaya
Director of Administrative Operations