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Wednesday Aug 31, 2016
History (4 weeks)
Alerts & Maintenance
DMARC Enforcement of Inbound Mail
In the coming weeks we will be introducing DMARC policy enforcement and reporting for all incoming email. DMARC is a form of sender authentication, which includes SPF and DKIM, that allows email receivers like Hosted Email to validate attributes of a message against public DNS information for the sender. If the message is not valid, then the same DNS information tells receivers how to treat the message (do nothing, treat as spam, reject). DMARC is a proven defense against common spoofing and phishing tactics used by the bad guys to fool users into giving up sensitive or personal information.
Initially, this protection is targeting incoming email from the Internet. The next step will be DKIM signing of outgoing mail, which will allow our customers to take advantage of a DMARC policy for your domain.
Network Operations will be performing a maintenance to improve the stability and fail over capability of our network through proactive replacement of hardware in one of our data center network devices. The work will take place between 2:00AM CDT and 6:00AM CDT on September 1, 2016. Hosted Email and Hosted Exchange users may experience intermittent connectivity issues during this time, though we expect any disruptions to be minimal.
Inbound Email Protection
Over the coming weeks, we will be introducing additional protection to our email services that will provide more control over the amount of email that users receive. This extra layer of control will ensure optimal up-time and stability for the entire email environment. This change will apply to our Hosted Email environment and Exchange 2007, 2010, 2013, and 2016.
Here's how the new system will work:
-If a user receives more than approximately 200 messages within a period of several minutes, any additional emails will then be held for several minutes to avoid flooding the mailbox.
-This new protection will only apply to new mail from the internet, not mail from within the same domain/company.
Protecting the mail platform in this way ensures that all our customers have the best possible experience when sending and receiving email.