If you have hosting with Rucenter but want to use an external mail server, you need to add an MX record to your domain’s zone file pointing to the third-party mail server.
To add the records, do the following:
1. Open the DNS-master editor and select the domain you want to edit.

2. Add new MX and A records:


where:
test.ru. — your domain or host name (the trailing dot is mandatory);
10 — the MX record priority; the value should be set according to existing records;
mail.relay.name. — the mail server name provided by your email service provider (the trailing dot is mandatory);
IP_address_of_your_hosting_platform — this IP address can be found in the hosting control panel under Help.
3. Upload (publish) the zone to the DNS servers.
