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MX record setting

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by sekhar

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Hi,

When a mail exchange server, like hotmail.com, receives a mail from 'originalsenderdomain.com' with 'From' address as 'fromaddress@fromdomain.com', does hotmail exchange server look for an 'MX' record against 'originalsenderdomain.com' or 'fromdomain.com' domain?

The reason why the original sender domain is different from fromdomain is because we need to collect bounce records on a different server.

So, is it sufficient if i set an 'MX' record for 'fromdomain.com'?

2 replies

by bob_steel

An MX record isn't required for either.

The sender should have full forward and reverse DNS and an FQDN.

The From: address is usually checked to make sure it's a valid domain name but many MX don't do this.

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