Excerpts from TPA-RFC-71:

The proposed solution is:

• Mailman 3 upgrade (#40471)
• New sender-rewriting mail exchanger (#40987)
• Schleuder migration (#41796)
• Upgrade legacy mail server (#40694)

Timeline

Optimistic timeline

• Late September (W39): issue raised again, proposal drafted (now)
• October:
  • W40: proposal approved, installing new rewriting server
  • W41: rewriting server deployment, new mailman 3 server
  • W42: mailman 3 mailing list conversion tests, users required for testing
  • W43: mailman 2 retirement, mailman 3 in production
  • W44: Schleuder mailing list migration
• November:
  • W45: eugeni upgrade

Worst case scenario

• Late September (W39): issue raised again, proposal drafted (now)
• October:
  • W40: proposal approved, installing new rewriting server
  • W41-44: difficult rewriting server deployment
• November:
  • W44-W48: difficult mailman 3 mailing list conversion and testing
• December:
  • W49: Schleuder mailing list migration vetoed, Schleuder stays on eugeni
  • W50-W51: eugeni upgrade postponed to 2025
• January 2025:
  • W3: eugeni upgrade