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# Domain whitelist via valid SPF policy AND valid DKIM policy
# (Prefer to spf_whitelist or dkim_whitelist for domains that use both SPF and DKIM.)
comodo.com
geotrust.com
geotrusteurope.com
letsencrypt.org
# Domain whitelist via valid SPF policy AND valid DKIM policy
# (Prefer to spf_whitelist or dkim_whitelist for domains that use both SPF and DKIM.)
comodo.com
geotrust.com
geotrusteurope.com
letsencrypt.org