List Quality Check

You have no lists. To create a list click here

Select Page
Icon

Sender Score

Results for IP address
12.34.56.789

Sending Domain Information

MX Record   
SPF Record   

SSL Information

SSL Certificate
Owner
imperva.com
Issued by
GlobalSign Atlas R46 DV TLS CA 2026 Q3
Valid Until
11/15/2026
Sending IPs
IP Address    Hostname Volume    Sender Score   
23.251.226.50 e226-50.smtp-out.us-east-2.amazonses.com. VERY HIGH 96
23.251.226.51 e226-51.smtp-out.us-east-2.amazonses.com. VERY HIGH 99
23.251.226.52 e226-52.smtp-out.us-east-2.amazonses.com. VERY HIGH 74
23.251.226.53 e226-53.smtp-out.us-east-2.amazonses.com. VERY HIGH 99
23.251.226.54 e226-54.smtp-out.us-east-2.amazonses.com. VERY HIGH 99
23.251.226.55 e226-55.smtp-out.us-east-2.amazonses.com. VERY HIGH 97
23.251.226.56 e226-56.smtp-out.us-east-2.amazonses.com. VERY HIGH 96
23.251.226.57 e226-57.smtp-out.us-east-2.amazonses.com. VERY HIGH 87
23.251.226.58 e226-58.smtp-out.us-east-2.amazonses.com. VERY HIGH 99
54.240.11.102 a11-102.smtp-out.amazonses.com. VERY HIGH 81
54.240.11.111 a11-111.smtp-out.amazonses.com. VERY HIGH 99
54.240.11.128 a11-128.smtp-out.amazonses.com. VERY HIGH 99
54.240.11.155 a11-155.smtp-out.amazonses.com. VERY HIGH 99
54.240.11.164 a11-164.smtp-out.amazonses.com. VERY HIGH 96
54.240.48.2 a48-2.smtp-out.amazonses.com. VERY HIGH 99
54.240.48.9 a48-9.smtp-out.amazonses.com. VERY HIGH 99
54.240.48.21 a48-21.smtp-out.amazonses.com. VERY HIGH 96
156.70.5.159 mta-70-5-159.sparkpostmail.com. VERY HIGH 96
156.70.5.165 mta-70-5-165.sparkpostmail.com. VERY HIGH 84
156.70.25.53 mta-70-25-53.sparkpostmail.com. VERY HIGH 99
156.70.25.55 mta-70-25-55.sparkpostmail.com. VERY HIGH 96
158.247.21.137 bid4693.8011842t.aana.com. HIGH 99
158.247.21.138 bid4694.8011842m.aana.com. VERY HIGH 99
159.183.151.104 o2.ptr4218.gocadmium.com. HIGH 99
170.10.129.144 us-smtp-delivery-144.mimecast.com. VERY HIGH 98
170.10.133.144 us-smtp-delivery-144.mimecast.com. VERY HIGH 99
170.10.133.224 us-smtp-delivery-224.mimecast.com. VERY HIGH 97
218.20.6.2 NXDOMAIN MODERATE 69

The path to reputation greatness.

See if you’re being blocked.

Is your reputation suffering because you’re on a blocklist? Use our free tool to investigate.

Learn from star senders

Hear real sender stories on the Email After Hours podcast.

Keep your lists clean

Upload your list to our list quality checks tool to see if your contacts are legit.

Talk to an email expert.

We’re the experts in deliverability and driving maximum results from your email marketing. Let’s chat and find out how you can improve your sender reputation and raise your revenue.