DKIM SPF + Contact Form Failure

DKIM SPF + Contact Form Failure

The basic (and correctly implemented) Contact form on our website should be sending mail to user@domain.com (the domain / email / username I have registered with Zoho)

However no mail is entering the email account [from this php form]. The email account seems to be working via zoho well besides this.

When I check mail via Zoho inbox I get 2 warnings regarding DNS (DKIM / SPF) - However: I added the 2 DNS records over a week ago:

TXT
3434._domainkey.zillum.com
k=rsa; p=MIGfMA0GCSqGSIb3DQE

TXT
@
v=spf1 include:zcsend.net ~all

Why do the Zoho inbox warnings tell me I need to configure SPF etc?

Could this be connected to why the email account isn't getting email from the contact form?

This is very important because we're missing summer bookings costing the company thousands of pounds.


Additional info:

@
mx.zoho.com


@
mx2.zoho.com

Both TTL 1/2 hour


Additional info:

Hosting via godaddy

Domain DNS via godaddy on different acccount

I manage both accounts

php form + HTML looks perfect... sending mail to user@domain.com [re: zoho email)

via standard:

$mail_status = mail($mail_to, $subject, $body_message, $headers);