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VIPRE Email Security IP Addresses, MX records, Smart host and SPF record information


MX Records & Outbound Smart host

United States

In order for us to filter your emails, you will need to change your MX records to point at our service. You should use the same MX records for all domains you add to our system.


MX Record Priority 10 20 30

We also encourage you to relay your outbound mail through our service to enable the full range of functionality. To do this, you will need to configure a smart host or outbound relay addresses on your mail server.

Example: Your smart host should read:


Smart host

Firewall IP ranges


To ensure spammers cannot bypass our system and deliver mail directly to your server, we recommend you lock down your network so that your mail server is only able to receive SMTP connections from our platform. To ensure that this is achieved, please configure your firewall or mail server to only accept connections on port 25 from only the IP ranges below:

Recommended - For maximum redundancy, allow access from all of our US ranges:


Subnet IP


Subnet Mask


Net Mask


IP Range


/21 -


/24 -


/24 -


SPF Text Record


We encourage setting up an SPF text record in your domains DNS which designates our SMTP mail servers as authorized servers to send on behalf of your domain. Please note that if you do not already have an SPF text record you will need to add in IP's and domains that encompass ALL of the mail servers that you use to send mail from.


v=spf1 ~all

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