Email Authentication

dev.to

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 a mx include:_spf.google.com include:sendgrid.net include:servers.mcsv.net include:shops.shopify.com ~all

none

Cryptographic signature on outbound mail (selector: none).

No record published.

fail

Tells receivers what to do with mail that fails SPF/DKIM. Policy: none.

v=DMARC1; p=none;

1 smtp.google.com