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Configure DNS MX/SRV records

In order for your email to be filtered by MailChannels, you need to configure your DNS MX records to point to the MailChannels Outbound Filtering MX endpoints and create additional DNS SRV records to let us know where your email inbox servers are hosted.

Complete the following steps to configure your DNS MX/SRV records:

  1. Go to the Settings page.

  2. Click on Configure DNS MX/SRV records panel to expand the panel if it isn't already.

    Note: The port entries under the SRV portion in the above example should read 25 and not 0. Please ensure that you set the port to the SMTP port: 25 and do not use 0 for "port" in your SRV record entries!

  3. Create the DNS SRV records as shown in the first example snippet in the settings panel. The example snippet should contain one SRV record for each existing MX record in your DNS.

    The example in your domain console provides a copy and paste SRV record. If your DNS is managed by panel/forms you may not be able to simply copy and paste this into your console. The following column headers can be used when determining which value to enter into which field of your form. The following example breaks the first SRV entry in the above example into their appropriate descriptor fields: =
    TTL = 60
    Class = IN
    SRV(Record Type) = SRV
    Priority = 10
    Weight = 1
    Port = 25
    Target =

    Note: It is important that you create the SRV records first so that they are resolvable by the time you create the MX records in the following step.

  4. Change your DNS MX records as shown in the second snippet in the settings panel.
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