Got a curious message after sending to 2 valid email addresses. Please note I have changed the actual email addresses and names but they are both valid and reachable when I email them form another account.
Your message did not reach some or all of the intended recipients.
Subject: Draft of proposed contract
Sent: 4/21/2014 2:52 PM
The following recipient(s) cannot be reached:
Joe Johnson Esq. (joeJ@company.com) on 4/21/2014 2:52 PM
Sandra Swanson (firstname.lastname@example.org) on 4/21/2014 2:52 PM
What could be the cause?