SPF
To authorize Hekko to send emails on your behalf you will have to include it in your SPF record. The SPF record mechanism used by Hekko is shown below.
include:spf.hekko.pl
For more information on SPF please click on the button below.
DKIM
For more information on enabling DKIM please contact Hekko support.
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Create a free OnDMARC account to test your configuration.