Allowlist Greenhouse server IP addresses for HRIS Link, API, webhooks, and custom SMTP

This article contains the most up-to-date IP addresses used for Greenhouse Software's HRIS Link, API, outbound webhooks, and custom SMTP traffic. Depending on your organization's security practices, you may need to allowlist these IPs.

Organizations setting up a custom SMTP relay should allowlist all the IP addresses in the table below, based on their organization's assigned silo.

Silo

IP address

Region

Silos 1-9

52.20.168.64

us-east-1

Silos 1-9

52.70.216.197

us-east-1

Silos 1-9

52.20.64.141

us-east-1

Silos 1-9

34.210.95.47

us-west-2

Silos 1-9

34.210.126.35

us-west-2

Silos 1-9

54.70.1.6

us-west-2

Silos 1-9

3.126.6.8

eu-central-1

Silos 1-9

52.59.140.243

eu-central-1

Silos 1-9

3.125.245.140

eu-central-1

Silos 1-9

54.72.113.125

eu-west-1

Silos 1-9

52.210.241.76

eu-west-1

Silos 1-9

34.255.47.8

eu-west-1

Silo 101

52.70.198.126

us-east-1

Silo 101

52.70.198.130

us-east-1

Silo 101

52.70.198.132

us-east-1

Silo 101

34.212.151.47

us-west-2

Silo 101

34.218.33.219

us-west-2

Silo 101

35.165.21.138

us-west-2

Silo 101

18.194.108.205

eu-central-1

Silo 101

3.121.45.252

eu-central-1

Silo 101

52.28.54.35

eu-central-1

Silo 101

54.194.7.0

eu-west-1

Silo 101

54.246.134.222

eu-west-1

Silo 101

99.81.131.89

eu-west-1

Silo 201

3.24.87.169

ap-southeast-2

Silo 201

13.210.86.22 ap-southeast-2

Silo 201

54.79.10.87 ap-southeast-2

Silo 201

13.54.163.226 ap-southeast-2

Silo 201

3.104.12.119 ap-southeast-2

Silo 201

3.24.194.67 ap-southeast-2

Silo 201

16.50.226.240 ap-southeast-4

Silo 201

16.26.36.113 ap-southeast-4

Silo 201

16.26.26.33 ap-southeast-4

Silo 201

16.26.37.40 ap-southeast-4

Silo 201

16.26.45.58 ap-southeast-4

Silo 201

16.50.167.146 ap-southeast-4