Issue
A blackhole email address is as an email address that immediately discards the emails when they are received.
This is particularly useful for sub-production instances where you want emails to be sent or processed but do not want them to leave the ServiceNow mail servers.
| IMPORTANT: This will ONLY work if your instance is configured to use ServiceNow's mail server for SMTP. |
Most of the time, this is configured on SMTP mail servers by specifying certain email addresses or a domain.
Resolution
ServiceNow has the following configured on the SMTP mail servers.
# blackhole domains example.com discard: .example.com discard: test.com discard: .test.com discard: nobody.com discard: .nobody.com discard: dummy.com discard: .dummy.com discard: yourcompany.com discard: .yourcompany.com discard:
As long as the email address ends with any of the previously mentioned domains, it will be discarded by ServiceNow's SMTP mail server.
For example, nobody@example.com; john.smith@dev.example.com; blackhole@acme.yourcompany.com
