Email Source: MBS Books

Homepage: https://www.mbsbooks.com/

DMARC Capabilities

Capable of generating DMARC compliant email for others

Yes

Our data indicates MBS Books supports DMARC compliance via SPF.

Capable of signing email with DKIM for others

Contact MBS to ask about their DKIM capabilities.

Capable of sending SPF compliant email for others

Yes

All traffic we've seen comes from 'mbssmtp.mbsbooks.com' which translates into an addition of 'ip4:198.105.13.131' to your SPF record. In any case, be sure to contact MBS and verify this information before making changes to your SPF.