Email error: 550 SPF: x.x.x.x is not allowed to send mail from domain.com


The above error means that the mail from domain.com was rejected due to spf setting. The sender domain: domain.com have SPF setting that not allow to send the email from the IP x.x.x.x.

The spf is to prevent any mail forgery, spam issue, email spoofing and etc.

The basic SPF setting is v=spf1 a mx -all , 

means that 
[v=spf1]: This identifies the TXT record as an SPF string.
[a]: refer to the domain IP . The domain is allowed tosend mail through this A record
[mx]: refer to the domain MX record. The domain is allowed to send mail through this MX record
[-all]: No other servers are allowed to send mail from this domain.

Kindly feel free to contact us by submitting ticket to our support team
[email protected]  by providing us with the IP or MX record that allow the domain to end out the email, so that we could help on amending the domain SPF setting.


  • 16 Users Found This Useful
Was this answer helpful?

Related Articles

Bounce Back Emails

In computer jargon, a bounced e-mail is one that never arrives in the...

Rocksoft's Anti SPAM Technology

With the number of SPAM keep on increasing on the Internet, we have enforced the Reverse DNS...

Mail Failure - Too Many Recipients

From: Mail Delivery System [mailto:[email protected]]  Sent:...

SPAM IP Check

SYMPTOMS When you face an issue where you not able send out E-mail while just establish your...

SPF (Sender Policy Framework)

An extension of SMTP which stops email spammers from forging the "From" fields in an e-mail. Due...