Deployment

SMTP Relay for Third Party Sender DMARC Compliance

How can you eventually move to a p=reject policy when third parties are unable to send email properly on your behalf? In many cases, a DMARC compliant SMTP relay server can be used to do the trick. In this article, we’ll explore some of the facets of sending DMARC compliant email from third parties, what to look for, and how common hosted solutions such as Google Apps, Office 365, Amazon Simple Email Service (SES), can be leveraged as SMTP relays.…
dmarcian
19 January 2016

SOBOO: Delegation with CNAMEs

Sending On Behalf Of Others: Sub-Domain Delegation With CNAMEs This article expands on the "CNAMEs" approach described in the larger How to send DMARC-compliant email on behalf of others article.  An assumption is that the reader is sending email on behalf of others, and desires to send such email in a manner compliant with DMARC. (more…)
dmarcian
4 January 2016

SOBOO: Full sub-domain delegation

Sending On Behalf Of Others: Full Sub-Domain Delegation This article expands on the "full delegation" approach described in the larger How to send DMARC-compliant email on behalf of others article.  An assumption is that the reader is sending email on behalf of others, and desires to send such email in a manner compliant with DMARC. (more…)
dmarcian
4 January 2016
Deployment

Policy Modes: Quarantine vs Reject

Domain owners can publish policies that will be applied to email that is not compliant with DMARC: none - which means “take no action, just collect data and send me reports”, quarantine - which means “treat with suspicion”, and reject - which mean “block outright”. DMARC deployers often ask us: “what’s the difference between quarantine and reject, and what will happen when I publish these policies?”  Understanding what happens when quarantine or reject is published is pretty important! (more…)
dmarcian
19 December 2015