I have a client who has reported that his email won't send to a particular person (company).
Now I have gone through the SPF records using the wizard provided by No-IP but he apparently still has issues.
domain name is :
error is the following:
This is the mail system at host mail.swartsit.com.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The mail system
: host mx4.netregistry.net[202.12
said: 550 18.104.22.168 is not allowed to send mail from cleandrum.com.
(in reply to end of DATA command)
but my spf record clearly states that IP as being able to send. Am I going nuts, or do I not understand SPF records properly??
Thanks in advance