Question : Notes to Exchange: Message had syntax that was not valid

We have a mixed environment: Notes and Exchange.  When a user is sending a meeting request from Notes to Exchange she receives the following message back: Message had syntax that was not valid   It only seems to happen when sending from Notes to Exchange.

Answer : Notes to Exchange: Message had syntax that was not valid

Is that the exact error message ?

No info on the IBM sites.

Please check the error message again.

I hope this helps !