I have a user who gets an error when replying to a lot of emails:
"You specified a recipient that matches multiple address book entries. Specify a unique email address for the recipient, or edit the address book entries to make them unique."

This happens ONLY in Web Access. GroupWise client is fine.
This happens with multiple recipients.
I found that if I delete an address from the Frequent Contacts for one particular contact. This seems to resolved the issue for that one contact only.
But then why should I need to do that?

Is this perhaps a bug in this version of GroupWise?
SLES 11.4
OES 2015.1
GroupWise 14.2.2 Build:128382