Email Source: MailDealer

Homepage: https://www.maildealer.jp/

This source is known to forward email

Capable of generating DMARC compliant email for others

Yes

There appears to be some capability to send DMARC compliant messages via both SPF and DKIM. Contact this vendor for further details.

Capable of signing email with DKIM for others

Yes

Capable of sending SPF compliant email for others

Yes