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Email Source: Online Computer Library Center, 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? no

Capable of sending SPF compliant email for others? yes

Notes on Capabilities

DMARC: DMARC compatibility via SPF.

DKIM: no notes

SPF: OCLC sends email using customer's domain in envelope, allowing SPF to produce results relevant to 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.