[Evolution] SSL Unknown CA or Bad Record MAC

[ximian-evolution squalor org]

[Having problems getting email to the list correctly - my fault - but
hopefully this will get there correctly, but apologies if there duplicates]

I'm having problems with Evolution v1.2.1 on RedHat 8.0. I have IMAP
over SSL working (didn't originally due to "Unknown CA" but deleted
~/evolution/cert7.db and now works) but now I get "Bad Record MAC"
when trying to connect to an SMTP server over SSL (SSL is provided on the
server using stunnel).

If I use 

  openssl s_client -connect mymailserver.com:465 -cipher RC4-MD5

everything works correctly.