Email Source: IWG (formerly Regus)

This source is known to forward email

Capable of generating DMARC compliant email for others

Yes

Various customer environments at IWG may be capable of sending DMARC compliant messages via either/both SPF or DKIM, but much traffic may be forwarded as well.

Capable of signing email with DKIM for others

Yes

Capable of sending SPF compliant email for others

Yes

Traffic from this source is only recognized as original (rather than forwarded) if it passes SPF correctly.