GMAIL will now place a red padlock next to messages that are not encrypted. The red padlock will indicate to your subscriber that the message is potentially unsafe and may not be from a trusted sender. The change is part of a new policy by GMAIL to encrypt email with Transport Layer Security (TLS) which is the successor to SSL
This change means email senders that comply correctly with the new GMAIL policy will have improved credibility and inbox delivery. Whilst GMAIL say that not all affected email will necessarily be dangerous, it advised extra caution when clicking links or replying to affected emails.
Ensure that your email platform can support GMAIL TLS for optimal inbox delivery. Contact our Support team if you need any help.