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
postcardmania.com
Issued by
WE1
Valid Until
02/11/2026
Sending IPs
IP Address    Hostname Volume    Sender Score   
20.67.221.12 smtp-outbound9.duck.com. VERY HIGH 99
35.89.44.34 omta35.uswest2.a.cloudfilter.net. VERY HIGH 59
35.89.44.38 omta39.uswest2.a.cloudfilter.net. VERY HIGH 11
44.202.169.38 omta039.useast.a.cloudfilter.net. VERY HIGH 14
54.68.193.51 inbound2b.ore.mailhop.org. VERY HIGH 55
54.149.154.28 inbound4b.ore.mailhop.org. VERY HIGH 48
54.149.206.185 inbound5b.ore.mailhop.org. VERY HIGH 51
54.186.60.165 inbound3a.ore.mailhop.org. VERY HIGH 16
54.191.158.99 inbound3b.ore.mailhop.org. VERY HIGH 13
64.26.60.153 mx0.mfg.onr.siteprotect.com. VERY HIGH 97
64.113.22.150 mailer.postcardmania.com. MODERATE 99
74.208.4.194 mout.perfora.net. VERY HIGH 97
74.208.4.196 mout.perfora.net. VERY HIGH 78
74.208.4.197 mout.perfora.net. VERY HIGH 68
100.1.226.6 smartermail.jungle.net. HIGH 98
108.166.43.128 gate.forward.smtp.ord1c.emailsrvr.com. VERY HIGH 97
121.127.44.59 mx2.forwardemail.net. VERY HIGH 97
135.84.80.182 sendera182.zohorecruit.com. HIGH 86
138.197.213.185 mx1.forwardemail.net. VERY HIGH 87
146.20.86.8 gate.forward.smtp.iad3b.emailsrvr.com. VERY HIGH 82
161.47.34.7 gate.forward.smtp.ord1d.emailsrvr.com. VERY HIGH 88
173.201.192.65 osplwbeout01-09.prod.phx3.secureserver.net. VERY HIGH 99
185.56.86.133 delivery.antispam.mailspamprotection.com. VERY HIGH 83
192.28.150.226 potomac1226.mktomail.com. VERY HIGH 99
192.28.150.227 potomac1227.mktomail.com. VERY HIGH 99
192.28.150.228 potomac1228.mktomail.com. VERY HIGH 99
192.28.150.229 potomac1229.mktomail.com. VERY HIGH 99
192.28.152.139 potomac2139.mktomail.com. VERY HIGH 99
192.28.152.140 potomac2140.mktomail.com. VERY HIGH 95
192.28.152.141 potomac2141.mktomail.com. VERY HIGH 99
192.28.152.142 potomac2142.mktomail.com. VERY HIGH 99
199.15.213.50 potomac1050.mktomail.com. VERY HIGH 99
199.15.213.51 potomac1051.mktomail.com. VERY HIGH 99
199.15.213.53 potomac1053.mktomail.com. VERY HIGH 99
204.232.172.40 gate.forward.smtp.iad3a.emailsrvr.com. VERY HIGH 87
209.85.208.49 mail-ed1-f49.google.com. VERY HIGH 60
209.85.208.51 mail-ed1-f51.google.com. VERY HIGH 43
209.85.208.52 mail-ed1-f52.google.com. VERY HIGH 43
209.85.218.43 mail-ej1-f43.google.com. VERY HIGH 60
209.85.218.47 mail-ej1-f47.google.com. VERY HIGH 68
209.85.218.49 mail-ej1-f49.google.com. VERY HIGH 60
216.17.14.23 mail009.23.14.a.static.mtka.securence.com. VERY HIGH 97
216.17.14.182 mail011.182.14.a.static.mtka.securence.com. VERY HIGH 98
216.17.56.180 mail019.180.56.a.static.mtka.securence.com. VERY HIGH 98
216.40.44.19 smtprelay0019.hostedemail.com. VERY HIGH 99
216.40.44.21 smtprelay0021.hostedemail.com. VERY HIGH 99
216.55.99.100 smtp-out.enter-system.com. HIGH 43
216.55.104.127 smtp-out4.enter-system.com. HIGH 54
Related Sending Domains
Domain   

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.