Frequently Asked Questions
Will my mail be hosted on your server?
No. We do not provide email hosting. We provide a mail gateway service. As your email passes through our server, the spam is filtered out and the legitimate mail is delivered to your existing mail server.
Do I have to have my own domain to use your service?
Yes, you will need to make a small change to your domain’s DNS records to use our service. You must own your domain or have access to these DNS records in order to use our service. If you have a free email account (Gmail, Yahoo, etc…) or an email address provided by your ISP, you cannot use our service.
What is an MX record?
An MX record is a special kind of DNS record that controls where Internet email should be delivered for your domain. It usually points to the IP address of your mail server, but by changing it to point to us, we are able to filter your mail before it reaches your server.
Will it cause my messages to be delayed?
You will not notice any significant delay in the delivery of your messages. Most messages are received, processed, and sent back out within a matter of seconds.
Does my outgoing mail go through you, too?
No. We only filter your incoming mail. Your outgoing mail will not travel through our servers.
What happens to my junk mail?
There are several options. By default, junk mail is kept in a quarantine on our server for 14 days after which it is deleted. You have the ability to login and view quarantined messages at any time. You can release individual messages from the quarantine and they will be delivered immediately. Other options are to have junk mail deleted immediately, or delivered with a modified subject line so your email client software can decide what to do with it.
Can I control the level of filtering?
Yes. Our easy to use, web-based control panel allows you to login and manage your account settings on a global level or for an individual user. You can setup whitelists and blacklists as well as adjust thresholds for detecting spam.
Is there a daily quarantine report?
Yes. There is a report that can be automatically emailed to users once per day at a specified time that shows what messages have been blocked in the last 24 hours. These reports can be turned off for individual users if desired.
What happens if my mail server is down or unavailable?
One of the additional benefits to using our service is that if your server goes down or is unavailable, we will buffer your mail in our mail queue for up to 5 days. Once your server is back online, we will automatically resume mail delivery without any messages getting lost in the process.
Is there a message size limit?
We have a message size limit of 50 MB. This includes the message and all attachments. If you need to receive larger messages, please contact us.
How do I prevent spammers from connecting to my mail server and bypassing MX Guardian
You can configure your router, firewall, or mail server to only accept email from MX Guardian’s IP addresses. Our current list of IP addresses can be found here.
Does your service work with free email services Gmail, Hotmail, Yahoo, etc...
Unfortunately no. Our service works at the domain-level so you need to own a domain name and have access to the domain's DNS servers to use our service.
Do I have to have a dedicated mail server to use your service?
No. Our service works with dedicated and non-dedicated mail servers. As long as your mail server is connected to the Internet and uses the SMTP protocol, it will work with our service.
Is your service compatible with Microsoft Exchange, Lotus Notes, Novell Groupwise, et cetera?
Yes. Any SMTP-compliant mail server that accepts messages from the Internet can be used with our service.
Can I use your service with Office 365?
Yes. Although Office 365 has it's own spam filtering built-in we have many customers using our service as an extra layer of protection.
Do you support IPv6?
Yes. We can deliver mail over IPv6 if your mail server has an IPv6 address
Pricing & Billing
How much does the service cost?
The monthly price depends on how many users you have in your account. If you have multiple domains, the price is based on the total number of users across all your domains. There is no cost to add a domain. See our pricing page for more details.
What is a "user"?
A user is any person that receives email and has a mailbox on your mail server. If a person has multiple email addresses going to the same mailbox, those can be setup as aliases in MX Guardian so you don't get charged for them. You can have as many aliases as you need.
Do you offer an annual payment option?
Unfortunately, we only have a monthly payment plan. The monthly price can flucutate depending on how many users you have in your account. Therefore, we only bill monthly.
What payment methods do you accept?
We accept Visa, MasterCard, Discover, and American Express. We do not accept any other payment method.
Is there a contract? What if I want to cancel?
There is no contract and you can cancel at any time. You can cancel your service by logging into your account and clicking the "Cancel my account" link on the Billing tab. Before you do this, please make sure your MX records are not pointing to our servers.
Is there a reseller program?
Yes, you can learn more about our reseller program here.