148.163.159.21 — Atlanta, Georgia, 🇺🇸 USA · AS22843 Proofpoint

PTR

mx0b-00148503.pphosted.com

A record for

`mx0b-00148503.pphosted.com`
	A	148.163.159.21
`mxa-00148503.gslb.pphosted.com`
	A	148.163.159.21
`mxb-00148503.gslb.pphosted.com`
	A	148.163.157.21

Previously A record for

spf-mailers.proofpoint.com

securemail.proofpoint.com

IP numbers used in conjunction

33%	148.163.157.21

🛡️Is this IP blacklisted?Check against 50+ spam databases→🌐148.163.158.0/23512 IPs · AS22843 Proofpoint→🔧AS22843Proofpoint autonomous system→

Atlanta, Georgia, 🇺🇸 USA

^{🇺🇸 Proofpoint148.163.158.0/23}

148.163.159.21 Atlanta, Georgia, 🇺🇸 USA Courtesy of