Email Source: HostGator

Homepage: https://www.hostgator.com/

This source is known to forward email

Capable of generating DMARC compliant email for others

Yes

HostGator supports DMARC compliance via SPF and DKIM.

Capable of signing email with DKIM for others

Yes

Contact HostGator for DKIM setup.

Capable of sending SPF compliant email for others

Yes

Add 'include:spf.websitewelcome.com' to your SPF or contact HostGator for an authorization that includes less servers.