Greylisted

Greylisted

Hi,

I've been working with this new server however, I had trouble to receive email sent by contact form from my wordpress website.

MX record, SPIF & DKIM all working and validated.

SMTP error from remote mail server after RCPT TO:<info@ktpb.org>: 451 4.7.1 Greylisted, try again after some time

Really need your help right now.