The current SPF record for zohobooks.com is "v=spf1 include:transmail.net ~all include:zoho.com ~all".

Note that there are 2x ~all mechanisms, and according to RFC7208 (https://tools.ietf.org/html/rfc7208#page-21) "Mechanisms after "all" will never be tested" and must be ignored. Thus, transmail.net is being appraised, but zoho.com is being ignored.