because if the FROM address of the contact form email to you is
your current domain settings, TXT records are
v=spf1 include:spf.protection.outlook.com ip4:126.96.36.199 ip4:188.8.131.52 -all
which EXCLUDES shopify from sending emails with that domain, = email wiped / deleted before delivery.
make the TXT record
v=spf1 a include:spf.protection.outlook.com ip4:184.108.40.206 ip4:220.127.116.11 -all
-- added the letter a
which denotes the A record is a valid sender for emails for that domain too, the A record is shopify !!
otherwise change -all to ~all and dont be so strict of WHO can send email from your domain
Eidi, have a look at your zoho settings / firewall. Login to zoho >> email or ask zoho support