code: public GetIdentityMailFromDomainAttributesResult withMailFromDomainAttributes(
              java.util.Map<String, IdentityMailFromDomainAttributes> mailFromDomainAttributes) {
          setMailFromDomainAttributes(mailFromDomainAttributes);
          return this;
      }
docs: <p>
  A map of identities to custom MAIL FROM attributes.
  </p>
  
  @param mailFromDomainAttributes
  A map of identities to custom MAIL FROM attributes.
  @return Returns a reference to this object so that method calls can be chained together.