When sending mails Evolution evolution-2.8.0-11.el5.i386 ignores the pgp setting
in the Security pull-down.
So it will just send an unencrypted mail.
2.8.0-14.el5 solves the issue and works as expected.
So this is another reason to push an update to RHN asap.
Setting the status to Modified.
A patch that was submitted for bug #208803 resulted in numerous regressions like
this one. See bug #215100 and bug #215454 for some of the other regressions.
Reproduced the bug on evolution-2.8.0-11.el5.i386 and verified the problem was
not found in evolution-2.8.0-22.el5 on RHEL5-Client-20061207.0. Resolve it now.