The challenge
Bird Mechanical was moving to a new email domain, and the constraint was easy to state and harder to satisfy: nobody could miss a message. For a mechanical contracting business coordinating work across active job sites, a bounced quote or a lost dispatch is not an IT inconvenience.
The migration also had to work with scripts Bird Mechanical's own team had already written. The question was not whether to build new tooling, but whether the existing scripts did what they claimed, updating addresses correctly while preserving old-domain functionality, and that had to be answered before anything touched production.
Our approach
BITSUMMIT delivered the engagement in three sequential phases, with each phase's deliverables validated before the next began.
Lock the plan before touching mail
A kickoff established roles, escalation paths and reporting formats, administrative access and licensing were confirmed, and risks were logged with mitigations. The phase produced a project schedule with milestones and a validation report confirming everything needed to proceed was in place.
Validate the scripts, then change the addresses
The client-provided scripts were reviewed against two requirements: that they update primary email addresses correctly, and that they retain the old domain's functionality. They were tested in a controlled environment before production use. Every user's primary address then moved to the new domain while the old one stayed fully active.
Cut over and retire the old domain
With the new domain carrying traffic and no issues outstanding, the cutover routed all communication through it and decommissioned the old one. User access was confirmed across the board, script execution was validated, and a completion report captured outcomes and lessons learned.
The outcome
Bird Mechanical runs exclusively on the new email domain. The two-step sequence, addresses first with the old domain alive and retirement second, meant users were never on the new domain without a working fallback behind them.
The engagement was scoped as a fixed effort with a committed spend ceiling, and it was delivered inside it. Validating the scripts ahead of production kept the work advisory rather than remedial: the client's own tooling performed the migration, with BITSUMMIT confirming it was safe to run and standing behind the cutover.
.webp)
