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Email Source: ZixCorp Systems Inc


Known to forward email? no

DMARC Capabilities

Capable of generating DMARC compliant email for others? yes

Capable of signing email with DKIM for others? yes

Capable of sending SPF compliant email for others? yes

Notes on Capabilities

DMARC: DMARC compliance possible via SPF and DKIM.

DKIM: Contact ZixCorp support for DKIM configuration. For more information on DKIM, please refer to:,-dkim-and-dmarc

SPF: General SPF for ZixCorp ''. For a more specific IP range, contact ZixCorp support. For more information on SPF, please refer to:,-dkim-and-dmarc


When deploying DMARC, domain owners often find new sources of email.

Domain owners then wonder if the source is capable of sending DMARC compliant email.

This directory contains information on the capabilities of various sources of email.