WorkMail

What it is

Amazon WorkMail is AWS's hosted business email and calendar service. It gives a company mailboxes on its own domain that work with Outlook, phones and a web client, with mail stored in AWS and managed alongside the rest of the account. It was priced per user, per month, and suited small teams that wanted mail on the same account as everything else.

AWS stopped taking new WorkMail customers on 30 April 2026 and ends the service on 31 March 2027. Organizations on it need to move their mailboxes, calendars and DNS records to another provider, such as Google Workspace or Microsoft 365, before that date, without losing mail or interrupting delivery. The DNS records for mail and its authentication have to move with them.

How I use it

• Company mailboxes on WorkMail for the businesses I run systems for, on their own domains.
• The domains sit in Route 53, so the records that decide where mail goes are in one place.
• Planning the move to Google Workspace or Microsoft 365 well before March 2027.
• System mail goes through SES separately, so the migration does not touch invoices and notices.

WorkMail made sense for companies whose domains and systems were already on AWS. With the service closing, the job now is a planned migration: pick the new provider, move the data, cut the DNS over and keep SPF, DKIM and DMARC right throughout. I am planning that for the businesses I run mail for.

Questions