How to check if the server is blocking email?

DataPacket's shared Web hosting platform uses RBL lists to determine the reputation of a mail server. Mail is blocked when the sender's mail server IP address is block-listed for having recently sent spam or other abusive mail.

You can run a sender's mail server IP address through an RBL lookup service to see if it would be blocked, one is provided below.

Generally, in a case when mail is blocked, the sender would contact their provider for help. The provider would go through the process of stopping the abuse and working with RBL providers to have their IP cleared from the block list.

RBL Lookup - http://multirbl.valli.org/

Our shared Web hosting systems use the following block-list providers.

zen.spamhaus.org https://www.spamhaus.org/zen/
truncate.gbudb.net http://www.gbudb.com/truncate/
b.barracudacentral.org https://www.barracudacentral.org/
bl.spamcop.net https://www.spamcop.net/bl.shtml
dnsbl-2.uceprotect.net http://www.uceprotect.net/en/index.php?m=1&s=0
bl.mailspike.net http://mailspike.org/
  • Mail, RBL, Spam, Spam Filtering
  • 133 Users Found This Useful
Was this answer helpful?

Related Articles

Outgoing SMTP Port 25

Overview As of 2018, DataPacket no longer allows by default outbound email connections through...

Is email marketing allowed?

Email marketing is not permitted on our network regardless of opt-in status or type of service,...

SPF Records

When using an SPF record it is important to specify the include parameter...

How to check if your ISP blocks SMTP port 25 or 587

Please replace 'mail.domain.com' in the example below with your actual domain name. In Windows...

Auto-forwarding Email

Auto-forwarding is the automatic forwarding of emails that you have received in one inbox to a...