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Lookups
1
Issue
484,346
IPv4 addresses
2.19 â‹… 10
24
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 a include:secureserver.net include:zoho.com mx ptr ~all
Copied
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
or else
include:
secureserver.net
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
GoDaddy
Inbox software
or else
include:
zoho.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Zoho Mail
Inbox software
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 a include:secureserver.net include:zoho.com mx ptr ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
include:spf-0.secureserver.net -all
32 x ip4 include:spf.protection.outlook.com -all
6 x ip4 5 x ip6 -all
include:spf.zoho.com include:zcsend.net include:spf.zohomail.com -all
IP ranges
2a01:111:f403:8000::
/ 51
Microsoft
AS8075
2a01:111:f403:8000::
2a01:111:f403:9fff:ffff:ffff:ffff:ffff
2a01:111:f403:c000::
/ 51
Microsoft
AS8075
2a01:111:f403:c000::
2a01:111:f403:dfff:ffff:ffff:ffff:ffff
2a01:111:f403:f000::
/ 52
Microsoft
AS8075
2a01:111:f403:f000::
2a01:111:f403:ffff:ffff:ffff:ffff:ffff
169.148.144.0
/ 25
Zoho Corporation Pvt. Ltd,
AS56201
169.148.144.0 - 169.148.144.127
128 IP addresses
169.148.146.0
/ 23
Zoho Corporation Pvt. Ltd,
AS56201
169.148.146.0 - 169.148.147.255
512 IP addresses
169.148.138.0
/ 24
Zoho Corporation Pvt. Ltd,
AS56201
169.148.138.0 - 169.148.138.255
256 IP addresses