What are the new authentication requirements for Yahoo! and Gmail?
Both Yahoo! and Google announced they will be tightening up their policies on allowing unauthenticated mail into their systems, a move specifically aimed at reducing spam from bulk senders. This is an industry-wide change and not specific to Constant Contact. While Constant Contact has been authenticating our customers’ mail for over 10 years, these recent changes mean a few more steps may be necessary to ensure deliverability. These changes went into effect Feb 2024.