Messaging Gateway

Hi All, 

this is a question to people which use Symantec E-mail related products. Maybe somebody will be able to explain me this kind of thing.

I`m new with Symantec so I would like to know if this kind of solution is possible with Symantec products.

From our company we are sending an E-mails using many different SMTP gateways. Our customer which using Symantec products to filter E-mail traffic, ( he didnt tell us which one) told us that he`s E-mail filtering system droping our E-mails because we are not using MX records.

Thats true in our domain we are not using MX records - only DNS A records with PTR (reverse dns). Base on the RFC standards, MX record is not required.

Is that true that Symantec not following RFC standards and its E-mails filter software droping all messages from the servers without MX records ?

If Yes, what kind of E-mail standards following Symantec ?

Thanks in Advance for any feedback.

Zalezny

Hi Zalezny,

> Base on the RFC standards, MX record is not required

Take a look at RFC7505, sec 4 - null MX

Generally Symantec's RFC support is documented eg in the admin guide.

BUT, depending on the client using smg options can be used/activated or not.

> droping all messages from the servers without MX records

I would recommend to drop connection where no sender mx-record exist. What about NDRs?

Because of that you should always register a domain including mx, a, ptr, (spf, dkim, etc), fqdn for helo, etc.

Thomas