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Email Source: MessageLabs (Symantec)

Homepage: http://www.symantec.com/products-solutions/families/?fid=symantec-cloud

Known to forward email? yes

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: MessageLabs can be configured to send using customer's domain in the envelope address, allowing SPF to pass in the DMARC context. If customer is forwarding through MessageLabs, 'auto signature' can be disabled to preserve integrity of existing DKIM signatures.

DKIM: no notes

SPF: no notes

Sources

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.