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To replicate the email routing functionality that the ESAs (fe3.lbl.gov and fe4.lbl.gov) provide to Email Repositories, the DNS contacts for repository and/or domain owners will need to take steps and then the Email team will complete the process.
Email Repository Owner actions:
- Verify that the domain(s) which route email to them are still in-use so that we do not unnecessarily migrate the domain(s) to Google
- Confirm that the Email repository IP address for each domain is accurate
- Make sure that any host and/or ASA firewalls allow SMTP directly from Gmail's IP addresses instead of just the ESAs (fe3.lbl.gov and fe4.lbl.gov)
- The border firewall will be opened to allow port 25 (SMTP) from Gmail's IP addresses to all confirmed Email repository IP addresses
Email team actions:
- Configure routes at Google from each in-use domain to its corresponding, confirmed Email repository IP address
- Change MX records for Email repositories from mailgate.lbl.gov to Gmail's MX records: https://support.google.com/a/answer/174125
