To allow Alchemer to send emails on your behalf, you will have to add them to your SPF record. The SPF mechanism used by Alchemer is shown below.
v=spf1 include:app.alchemer.com ~all
v=spf1 include:app.alchemer.eu ~all
v=spf1 include:appca.alchemer.com ~all
Alchemer support DKIM signing for your custom domain. For more information please click on the button below.
Create a free OnDMARC account to test your configuration.