Forwarding this bug from downstream.
Confirmed that it still exists in Evolution 2.7.91.
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=201541


Description of problem:


Version-Release number of selected component (if applicable):
evolution-2.7.4-4

How reproducible:
always

Steps to Reproduce:
1. Launch Mail-Evolution
2. Select a message (A) from Inbox E-mail list
3. On Menu bar, select Edit -> Select All Text (all text in this mail message is
selected)
4. On Menu bar, select Edit
  
Actual results:
Under Edit menu "Copy     Ctrl+C" is grey and cannot be selected


Expected results:


Additional info:
After step 3, if you selecting another mail message (B) in mail list, Under Edit
menu "Copy     Ctrl+C" is activate. Select "Copy     Ctrl+C", and paste to
oowriter, all text for mail message (B) is pasted. 
But if without step 1-3, "Copy     Ctrl+C" is grey too.