mit.edu SPF record

9 / 10 Lookups

0 Issues

963,941 IPv4 addresses

2.97 ⋅ 10 ²⁸ IPv6 addresses


                              v=spf1 include:_s00430413.autospf.email -all

Copied

Terms

include:

_s00430413.autospf.email

Evaluate this SPF record and pass if it

passes.

or else

-all

fail the email's SPF check.

Included records

mit.edu

v=spf1 include:_s00430413.autospf.email -all

_s00430413.autospf.email

24 x ip4 include:_s004304130.autospf.email -all

_s004304130.autospf.email

23 x ip4 include:_s004304131.autospf.email -all

_s004304131.autospf.email

22 x ip4 include:_s004304132.autospf.email -all

_s004304132.autospf.email

21 x ip4 include:_s004304133.autospf.email -all

_s004304133.autospf.email

20 x ip4 include:_s004304134.autospf.email -all

_s004304134.autospf.email

19 x ip4 include:_s004304135.autospf.email -all

_s004304135.autospf.email

11 x ip4 6 x ip6 include:_s004304136.autospf.email -all

_s004304136.autospf.email

9 x ip6 exists:%{i}._spf.mta.salesforce.com -all

IP ranges

3.99.6.92

Amazon.com

AS16509

69.72.41.2

Mailgun Technologies

AS396479

52.42.20.3

Amazon.com

AS16509

62.23.85.10

COLT Technology Services Group

AS8220

18.9.1.0 / 24

Massachusetts Institute of Technology

AS3

18.9.1.0 - 18.9.1.255

256 IP addresses

54.88.39.81

Amazon.com

AS14618

69.72.41.28

Mailgun Technologies

AS396479

52.101.9.26

Microsoft

AS8075

52.101.10.2

Microsoft

AS8075

52.101.40.4

Microsoft

AS8075

207.54.75.14

Cisco Systems Ironport Division

AS30215

207.54.75.15

Cisco Systems Ironport Division

AS30215

207.54.75.16

Cisco Systems Ironport Division

AS30215

142.0.177.24

BroadbandONE

AS7381

142.0.187.58

Rackspace Hosting

AS27357

18.7.16.0 / 24

Massachusetts Institute of Technology

AS3

18.7.16.0 - 18.7.16.255

256 IP addresses

18.7.21.0 / 24

Massachusetts Institute of Technology

AS3

18.7.21.0 - 18.7.21.255

256 IP addresses

18.7.34.0 / 24

Massachusetts Institute of Technology

AS3

18.7.34.0 - 18.7.34.255

256 IP addresses

18.7.62.0 / 24

Massachusetts Institute of Technology

AS3

18.7.62.0 - 18.7.62.255

256 IP addresses

18.7.68.0 / 24

Massachusetts Institute of Technology

AS3

18.7.68.0 - 18.7.68.255

256 IP addresses

18.7.71.0 / 24

Massachusetts Institute of Technology

AS3

18.7.71.0 - 18.7.71.255

256 IP addresses

18.9.21.0 / 24

Massachusetts Institute of Technology

AS3

18.9.21.0 - 18.9.21.255

256 IP addresses

18.9.25.0 / 24

Massachusetts Institute of Technology

AS3

18.9.25.0 - 18.9.25.255

256 IP addresses

18.9.28.0 / 24

Massachusetts Institute of Technology

AS3

18.9.28.0 - 18.9.28.255

256 IP addresses

74.112.64.38

Amazon.com

AS14618

129.41.172.4

Amazon.com

AS14618

64.128.67.16

Level 3 Parent

AS3549

64.128.67.20

Level 3 Parent

AS3549

72.55.140.81

Leaseweb Canada

AS32613

69.72.32.253

Mailgun Technologies

AS396479

69.72.47.188

Mailgun Technologies

AS396479

69.72.34.120

Mailgun Technologies

AS396479

69.72.45.120

Mailgun Technologies

AS396479

12.228.6.215

Florida Technology Managed Services

AS46121

52.45.50.190

Amazon.com

AS14618

52.31.29.196

Amazon.com

AS16509

52.60.142.64

Amazon.com

AS16509

13.237.94.13

Amazon.com

AS16509

54.66.240.63

Amazon.com

AS16509

40.92.0.0 / 15

Microsoft

AS8075

40.92.0.0 - 40.93.255.255

131,072 IP addresses

52.5.134.202

Amazon.com

AS14618

52.101.41.24

Microsoft

AS8075

207.54.83.136

Cisco Systems Ironport Division

AS30215

207.54.83.137

Cisco Systems Ironport Division

AS30215

207.54.83.138

Cisco Systems Ironport Division

AS30215

69.20.119.219

Rackspace Hosting

AS27357

63.32.240.193

Amazon.com

AS16509

52.19.113.120

Amazon.com

AS16509

74.125.0.0 / 16

Google

AS15169

74.125.0.0 - 74.125.255.255

65,536 IP addresses

139.60.0.0 / 22

Amazon.com

AS14618

139.60.0.0 - 139.60.3.255

1,024 IP addresses

74.112.65.118

Amazon.com

AS14618

208.85.54.226

Amazon.com

AS14618

129.41.172.69

Amazon.com

AS14618

165.192.56.56

13.111.0.0 / 16

Salesforce.com

AS14340

13.111.0.0 - 13.111.255.255

65,536 IP addresses

143.55.237.88

MAILJET

AS200069

167.89.0.0 / 17

SendGrid

AS11377

167.89.0.0 - 167.89.127.255

32,768 IP addresses

50.31.32.0 / 19

SendGrid

AS11377

50.31.32.0 - 50.31.63.255

8,192 IP addresses

198.21.0.0 / 21

SendGrid

AS11377

198.21.0.0 - 198.21.7.255

2,048 IP addresses

149.72.0.0 / 16

Amazon.com

AS14618

149.72.0.0 - 149.72.255.255

65,536 IP addresses

52.76.190.252

Amazon.com

AS16509

3.218.253.173

Amazon.com

AS14618

35.160.78.215

Amazon.com

AS16509

54.195.228.99

Amazon.com

AS16509

40.172.14.241

Amazon.com

AS16509

40.107.0.0 / 16

Microsoft

AS8075

40.107.0.0 - 40.107.255.255

65,536 IP addresses

52.100.0.0 / 15

Microsoft

AS8075

52.100.0.0 - 52.101.255.255

131,072 IP addresses

52.102.0.0 / 16

Microsoft

AS8075

52.102.0.0 - 52.102.255.255

65,536 IP addresses

52.103.0.0 / 17

Microsoft

AS8075

52.103.0.0 - 52.103.127.255

32,768 IP addresses

104.47.0.0 / 17

Microsoft

AS8075

104.47.0.0 - 104.47.127.255

32,768 IP addresses

154.62.6.0 / 24

Cogent Communications

AS174

154.62.6.0 - 154.62.6.255

256 IP addresses

34.251.228.195

Amazon.com

AS16509

142.0.176.0 / 20

BroadbandONE

AS7381

142.0.176.0 - 142.0.191.255

4,096 IP addresses

69.48.230.0 / 25

BroadbandONE

AS7381

69.48.230.0 - 69.48.230.127

128 IP addresses

20.96.12.43

Microsoft

AS8075

20.1.130.13

Microsoft

AS8075

37.59.249.0 / 24

OVH

AS16276

37.59.249.0 - 37.59.249.255

256 IP addresses

69.25.199.0 / 24

Unitas Global

AS14742

69.25.199.0 - 69.25.199.255

256 IP addresses

87.253.236.214

MAILJET

AS200069

148.105.0.0 / 16

MailChimp

AS14782

148.105.0.0 - 148.105.255.255

65,536 IP addresses

178.33.111.144

OVH

AS16276

159.183.195.16

SendGrid

AS11377

143.55.237.127

MAILJET

AS200069

143.55.237.162

MAILJET

AS200069

143.55.237.120

MAILJET

AS200069

185.12.80.0 / 22

185.12.80.0 - 185.12.83.255

1,024 IP addresses

216.198.0.0 / 18

Amazon.com

AS16509

216.198.0.0 - 216.198.63.255

16,384 IP addresses

168.245.0.0 / 17

SendGrid

AS11377

168.245.0.0 - 168.245.127.255

32,768 IP addresses

159.183.0.0 / 16

SendGrid

AS11377

159.183.0.0 - 159.183.255.255

65,536 IP addresses

13.215.187.237

Amazon.com

AS16509

40.172.175.158

Amazon.com

AS16509

20.1.128.197

Microsoft

AS8075

20.10.24.226

Microsoft

AS8075

209.85.128.0 / 17

Google

AS15169

209.85.128.0 - 209.85.255.255

32,768 IP addresses

37.59.69.128 / 25

OVH

AS16276

37.59.69.128 - 37.59.69.255

128 IP addresses

75.98.95.161 / 27

Unitas Global

AS12182

75.98.95.160 - 75.98.95.191

32 IP addresses

87.253.232.0 / 21

87.253.232.0 - 87.253.239.255

2,048 IP addresses

96.43.144.64 / 31

Salesforce.com

AS14340

96.43.144.64 - 96.43.144.65

2 IP addresses

96.43.148.64 / 31

Salesforce.com

AS14340

96.43.148.64 - 96.43.148.65

2 IP addresses

165.193.101.141

CenturyLink Communications

AS3561

165.193.101.142

CenturyLink Communications

AS3561

198.187.196.100

Touchnet Information Systems

AS13450

198.187.196.130

Touchnet Information Systems

AS13450

198.245.81.0 / 24

Salesforce.com

AS14340

198.245.81.0 - 198.245.81.255

256 IP addresses

159.135.226.248

Mailgun Technologies

AS396479

159.135.233.165

Mailgun Technologies

AS396479

12.228.6.215

Florida Technology Managed Services

AS46121

208.117.48.0 / 20

SendGrid

AS11377

208.117.48.0 - 208.117.63.255

4,096 IP addresses

198.37.144.0 / 20

SendGrid

AS11377

198.37.144.0 - 198.37.159.255

4,096 IP addresses

134.128.64.0 / 19

SendGrid

AS11377

134.128.64.0 - 134.128.95.255

8,192 IP addresses

134.128.96.0 / 19

SendGrid

AS11377

134.128.96.0 - 134.128.127.255

8,192 IP addresses

69.20.119.216 / 29

Rackspace Hosting

AS27357

69.20.119.216 - 69.20.119.223

8 IP addresses

76.12.109.192 / 27

Ntirety

AS20021

76.12.109.192 - 76.12.109.223

32 IP addresses

67.59.141.128 / 28

Ntirety

AS20021

67.59.141.128 - 67.59.141.143

16 IP addresses

70.42.227.151

Unitas Global

AS11855

70.42.227.152

Unitas Global

AS11855

20.114.186.35

Microsoft

AS8075

139.146.160.0 / 25

LightEdge Solutions

AS11320

139.146.160.0 - 139.146.160.127

128 IP addresses

74.62.122.128 / 25

Charter Communications

AS11427

74.62.122.128 - 74.62.122.255

128 IP addresses

136.147.176.0 / 24

Salesforce.com

AS14340

136.147.176.0 - 136.147.176.255

256 IP addresses

136.147.182.0 / 24

Salesforce.com

AS14340

136.147.182.0 - 136.147.182.255

256 IP addresses

136.147.135.0 / 24

Salesforce.com

AS14340

136.147.135.0 - 136.147.135.255

256 IP addresses

199.122.123.0 / 24

Salesforce.com

AS14340

199.122.123.0 - 199.122.123.255

256 IP addresses

103.151.192.0 / 23

Amazon.com

AS16509

103.151.192.0 - 103.151.193.255

512 IP addresses

188.172.128.0 / 20

188.172.128.0 - 188.172.143.255

4,096 IP addresses

192.161.144.0 / 20

192.161.144.0 - 192.161.159.255

4,096 IP addresses

192.254.112.0 / 20

SendGrid

AS11377

192.254.112.0 - 192.254.127.255

4,096 IP addresses

223.165.113.0 / 24

SendGrid

AS11377

223.165.113.0 - 223.165.113.255

256 IP addresses

223.165.115.0 / 24

SendGrid

AS11377

223.165.115.0 - 223.165.115.255

256 IP addresses

223.165.118.0 / 23

SendGrid

AS11377

223.165.118.0 - 223.165.119.255

512 IP addresses

223.165.120.0 / 23

SendGrid

AS11377

223.165.120.0 - 223.165.121.255

512 IP addresses

209.41.176.224 / 28

Ntirety

AS20021

209.41.176.224 - 209.41.176.239

16 IP addresses

20.119.174.191

Microsoft

AS8075

20.230.106.230

Microsoft

AS8075

20.119.207.133

Microsoft

AS8075

178.33.137.208 / 28

OVH

AS16276

178.33.137.208 - 178.33.137.223

16 IP addresses

204.232.162.112 / 28

Rackspace Hosting

AS27357

204.232.162.112 - 204.232.162.127

16 IP addresses

204.232.180.112 / 29

Rackspace Hosting

AS27357

204.232.180.112 - 204.232.180.119

8 IP addresses

204.232.180.128 / 29

Rackspace Hosting

AS27357

204.232.180.128 - 204.232.180.135

8 IP addresses

2800:3f0:4000:: / 36

Google

AS15169

2800:3f0:4000::

2800:3f0:4fff:ffff:ffff:ffff:ffff:ffff

139.146.146.128 / 25

LightEdge Solutions

AS11320

139.146.146.128 - 139.146.146.255

128 IP addresses

2a01:111:f400:: / 48

Microsoft

AS8075

2a01:111:f400::

2a01:111:f400:ffff:ffff:ffff:ffff:ffff

2a01:111:f403:: / 49

Microsoft

AS8075

2a01:111:f403::

2a01:111:f403:7fff:ffff:ffff:ffff:ffff

2001:4860:4000:: / 36

Google

AS15169

2001:4860:4000::

2001:4860:4fff:ffff:ffff:ffff:ffff:ffff

2404:6800:4000:: / 36

Google

AS15169

2404:6800:4000::

2404:6800:4fff:ffff:ffff:ffff:ffff:ffff

2607:f8b0:4000:: / 36

Google

AS15169

2607:f8b0:4000::

2607:f8b0:4fff:ffff:ffff:ffff:ffff:ffff

2a00:1450:4000:: / 36

Google

AS15169

2a00:1450:4000::

2a00:1450:4fff:ffff:ffff:ffff:ffff:ffff

2c0f:fb50:4000:: / 36

Google

AS15169

2c0f:fb50:4000::

2c0f:fb50:4fff:ffff:ffff:ffff:ffff:ffff

2a01:111:f403:c927::

Microsoft

AS8075

2a01:111:f403:f902::2

Microsoft

AS8075

2a01:111:f403:c92c::1

Microsoft

AS8075

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

2a01:111:f403:f90a::

Microsoft

AS8075