Mail / MX Backup

Does the service start automatically?
Once your MX records have been updated with your DNS provider your smtp service be activated. If your mail server goes down for any reason or if the sending...
Tue, 18 Dec, 2018 at 8:23 PM
Length of Time Email is Kept in the MX Backup
Default Mail Queue Retention Policy With DuoCircle email services your email is kept in the mail queue for 30 days, during that time we are attempting t...
Tue, 18 Dec, 2018 at 8:29 PM
Do I have to install anything on my server?
This is no software to install on your server, we are 100% cloud based enterprise email service. Activating our service typically takes less than five minut...
Tue, 18 Dec, 2018 at 9:16 PM
How often do your servers check to see if our mail server is back online?
Our servers will attempt to redeliver each message on a specific interval over the time that your server is down.  We will attempt a retry at 1,15,30,60...
Tue, 18 Dec, 2018 at 9:20 PM
Is there a limit to how many messages we can receive or how much disk space we utilize?
There is no limitation on the number of messages received or disk space utilized for backup MX. The only limitation is a 50MB per message attachment size li...
Tue, 18 Dec, 2018 at 9:24 PM
How secure are my emails on your systems?
We utilize Amazon Web Services and use multiple zones across data centers in Oregon and in Frankfurt Germany. Oregon is one of the safest geographic ...
Thu, 8 Jun, 2017 at 8:52 PM
Is the Backup MX service filtering my email for Spam and Viruses?
Yes, we filter all email that comes to our system including email that is destined for the Backup MX servers. We do this because spammers are notorious ...
Tue, 18 Dec, 2018 at 9:30 PM
Do you do any spam filtering and virus scanning of emails?
All email is virus and spam filtered so that malicious content cannot be sent to your  server by a spammer trying to use your backup MX record. Our enterpri...
Tue, 18 Dec, 2018 at 9:34 PM
Why does my MX Backup Service have a destination server option?
Typically for the MX Backup service you do NOT need to define a destination mail server or hosted smtp - and when setting up your new MX email backup se...
Mon, 4 Feb, 2019 at 10:32 PM
Where are the servers located?
Our enterprise email security leverages Amazon Web Services in Oregon and Frankfurt Germany. We have also built out fault tolerance in all layers of our in...
Tue, 18 Dec, 2018 at 9:53 PM

DuoCircle LLC provides email security services. Our solutions include phishing protection, smtp as a service, office 365 tenant to tenant migration, mx backup, email archiving and spam filtering and other solutions.