MXLIST.NET - postmasterclass.com
Search for IP or hostnames:
postmasterclass.com checked at 2025-11-19T02:06:46.081Z 996ms 100/100/100 100% R:10 allDone:true timedOut:false postmasterclass.com
| NS | sdns34.ultradns.biz | ||||||
| A | 2610:a1:1003::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.biz | ||||||
| A | 156.154.142.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.biz | ||||||
| NS | sdns34.ultradns.com | ||||||
| A | 2610:a1:1001::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.com | ||||||
| A | 156.154.140.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.com | ||||||
| NS | sdns34.ultradns.net | ||||||
| A | 2610:a1:1002::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.net | ||||||
| A | 156.154.141.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.net | ||||||
| NS | sdns34.ultradns.org | ||||||
| A | 2610:a1:1004::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.org | ||||||
| A | 156.154.143.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.org | ||||||
| MX | mxa-001a3c01.gslb.pphosted.com | ||||||
| A | 67.231.148.195🇺🇸 Proofpoint | ||||||
| PTR | mx0a-001a3c01.pphosted.com | ||||||
| MX | mxb-001a3c01.gslb.pphosted.com | ||||||
| A | 67.231.148.195🇺🇸 Proofpoint | ||||||
| PTR | mx0a-001a3c01.pphosted.com | ||||||
| A | 174.129.15.191🇺🇸 Amazon | ||||||
| PTR | ec2-174-129-15-191.compute-1.amazonaws.com | ||||||
com
Starts with same word
postmasterclass.com |
Starts similarily
postmasterclass.com |
masterclasspost.com |
AI analysis
postmasterclass.com resolves to a single IP: 174.129.15.191.
Other host names share IP numbers with postmasterclass.com; for instance ec2-174-129-15-191.compute-1.amazonaws.com.
postmasterclass.com is delegated to four name servers: sdns34.ultradns.biz, sdns34.ultradns.com, sdns34.ultradns.net and sdns34.ultradns.org.
postmasterclass.com shares some name servers with other domains, for example servicealley.com, thelily.com, shopdcmagazine.com, shopdc.com and digitalink.com.
Host names with two IP numbers
Two IPs per host:
sdns34.ultradns.biz points to 2610:a1:1003::22 and 156.154.142.34
sdns34.ultradns.com points to 2610:a1:1001::22 and 156.154.140.34
sdns34.ultradns.net points to 2610:a1:1002::22 and 156.154.141.34
sdns34.ultradns.org points to 2610:a1:1004::22 and 156.154.143.34
postmasterclass.com is served by two mail servers: mxa-001a3c01.gslb.pphosted.com and mxb-001a3c01.gslb.pphosted.com.
postmasterclass.com shares the mail server setup with other domains, for example digitalink.com, wecasa.com, e.washingtonpost.com, strollaround.com and zeustechnology.com.
postmasterclass.com shares some mail servers with other domains at least partially, for instance newhomesguide.com and gwpi.net.
these mail servers are commonly used alongside email.newhomesguide.com and mail.newhomesguide.com.
Host names with one IP number:
mxa-001a3c01.gslb.pphosted.com points to: 67.231.148.195
mxb-001a3c01.gslb.pphosted.com points to: 67.231.148.195
Names pointing to 67.231.148.195: mxa-001a3c01.gslb.pphosted.com and mxb-001a3c01.gslb.pphosted.com