Migration begins with inventory
Before changing DNS, we identify active mailboxes, aliases, groups, mailbox sizes, historical data, devices and dependencies that must survive the move.
Business Email Migration
Move business email without losing the messages your company depends on.
A business email migration should preserve mail history, establish the new mail environment, control DNS cutover and verify sending and receiving before the old system is retired. DSDillon plans the move around continuity rather than treating it as a simple mailbox switch.
Why it matters
How this affects your business
01
Changing MX records too early can split mail between providers.
02
Old messages may be stranded if migration scope is not checked first.
03
Users can lose access during cutover when credentials, aliases and devices are not planned.
Controlled cutover
The new environment is configured before mail routing is changed. DNS, authentication and receiving tests are coordinated so the organization has a clear transition point and rollback path.
Verify before retiring the old system
Sending, receiving, aliases, historical data and access are checked before the previous service is considered finished.
Business Email
Business Email Infrastructure Setup & Migration
Business email setup or migration, including domain settings, authentication, planning the switch and checking that the new setup works.
Professional
$2,500one-time
For a small team setting up or moving business email.
- Domain email setup
- Mailbox setup or controlled migration
- SPF / DKIM / DMARC configuration review
- MX and routing configuration
- Cutover plan
- Checks on the live setup
Pay by credit or debit card. Checkout asks for your contact details and information about the work you need.
Broader coverage
Advanced
$5,000one-time
For larger teams or a more complicated email migration.
- Everything in Professional
- Expanded mailbox migration scope
- Alias and mail routing setup
- Deliverability baseline
- Checks that the agreed data has moved
- Post-cutover verification
- Priority implementation window
Pay by credit or debit card. Checkout asks for your contact details and information about the work you need.
Executive
$9,500one-time
For several domains, complex routing or greater control over email.
- Everything in Advanced
- Multi-domain architecture
- Complex routing and identity design
- Advanced migration sequencing
- Review of service continuity and recovery
- Oversight of the migration switch
- Priority help after launch
Pay by credit or debit card. Checkout asks for your contact details and information about the work you need.
Mailbox licensing or third-party software fees are not included unless explicitly stated in scope.
Email migration field guide
Move mailboxes as a controlled change to identity, routing and user continuity.
An email migration is more than copying messages. The project needs a mailbox and alias inventory, domain and DNS control, source and destination access, preservation decisions, authentication planning, a cutover window and post-change tests for both inbound and outbound mail.
Inventory users, aliases and special addresses
List active mailboxes, shared addresses, forwards, groups, catch-all behavior and application senders. Decide what historical mail, contacts and calendars must move and which obsolete accounts should remain out of the destination.
Prepare the destination before changing MX
Create and test the destination accounts, security settings, aliases and sending authentication before public routing changes. Confirm administrator recovery and user sign-in so the business is not depending on an untested environment during cutover.
Control the routing change
Document existing DNS, lower TTLs when appropriate, schedule the switch and know which old service must remain available while caches update. Avoid changing unrelated website records during the same window unless the dependency is understood.
Validate every direction after cutover
Send controlled external messages in and out, test replies, aliases, shared mailboxes and important application mail. Review SPF, DKIM and DMARC results from real headers, confirm users can reach historical mail and keep the former environment available until acceptance criteria are met.
Related guidance
Explore more about Business Email Migration
Business email infrastructure, authentication, migration and deliverability.
