WWW.RTSAK.COM - mx0b-001f9d01.pphosted.com

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mx0b-001f9d01.pphosted.com checked at 2025-10-16T14:14:04.834Z 110ms 28/28/28 100% R:11

`mx0b-001f9d01.pphosted.com`

	A	148.163.158.49^{🇺🇸 Proofpoint}
			PTR	`mx0b-001f9d01.pphosted.com`

	NS	`pdns99.ultradns.biz`
	NS	`ns1.proofpoint.com`
	NS	`ns3.proofpoint.com`
	NS	`pdns99.ultradns.com`
	NS	`pdns99.ultradns.net`
	NS	`pdns99.ultradns.org`
	MX	`mx1.proofpoint.com.gslb.pphosted.com`
	MX	`mx2.proofpoint.com.gslb.pphosted.com`

49.158.163.148.in-addr.arpa

mx0b-001f9d01.pphosted.com acts as the mail server for costco.com.au, costco.com, costco.se, costco.co.uk, costco.com.mx and a few other domains.

mx0a-001f9d01.pphosted.com is a common mail server alongside mx0b-001f9d01.pphosted.com.

mx0b-001f9d01.pphosted.com points to a single IP number: 148.163.158.49.

Other host names, for instance mxa-001f9d01.gslb.pphosted.com, share IP numbers with mx0b-001f9d01.pphosted.com.

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