To authorize Seeweb to send emails on your behalf you will have to include it in your SPF record. The SPF record mechanism used by Seeweb is shown below.

include:_outch.smtp.seeweb.it

Seeweb supports DKIM signing for your custom domain. For more information on SPF and DKIM please click on the button below.

Create a free OnDMARC account to test your configuration.