What happens to email sync when someone leaves?

Three things happen when a colleague leaves, and they get confused with each other. The sync stops. The history that already synced usually stays. And a decision about who may read it now falls to whoever is holding the admin console that week.

Only the first is technical.

What happens to the sync when the account is disabled?

Disable the account and the connection breaks within hours, because the token stops being valid. Nothing new arrives after that. What that does not do is remove anything. Messages already attached to contacts and deals are CRM records now, and they behave like every other record: they stay until somebody deletes them. The same goes for what tracking recorded while they were sending: the opens sit on the record, not on the person.

That is usually correct. A customer conversation is company information, and losing the last six months of it because the person who typed it left is a worse outcome than the alternative.

Who can read it now?

Here is the part that surprises people. Those messages are visible to anyone with access to the record, which is often the whole team, and it was already true before anybody left. So the question is not "should we keep this", it is "was this ever meant to be team-visible". If the departing person used their mailbox for anything personal, some of that is now in shared records with no obvious way to find it. Searching the activity list for their personal correspondents is the only practical clean-up, and it is much easier before the account is disabled.

This is the strongest argument for keeping personal mail out of sync in the first place, and offboarding is when the cost of not having done so arrives.

Are the mailbox and the CRM one decision?

Keeping a mailbox open for forwarding is a mail decision. Keeping their CRM records is a data decision. They have different owners, different costs, and often different legal footing in the EU and UK. Decide them separately and write both down. In several jurisdictions a former employee's mailbox has retention obligations of its own, which is worth checking properly rather than assuming.

The first week

Reassign the records before you disable the account. Their contacts, their open deals and any company where they were the named owner: companies need an owner even when the individual contacts get split among several people.

Then set an end date for the mail history rather than leaving it forever, as part of your retention rules.

Frequently asked questions

What happens to synced emails when an employee leaves?

The sync stops within hours of the mailbox being disabled, because the connection token stops being valid. Messages that already synced remain in the CRM as ordinary records and stay until somebody deletes them. That is usually the right outcome, since a customer conversation is company information rather than personal property.

Can colleagues still read a departed employee's synced emails?

Yes, anyone with access to the contact or deal record can read the messages attached to it, and that was already true while the person worked there. Disabling their account changes nothing about visibility. If any personal correspondence synced, it is now in shared records, and finding it is far easier before the account is closed.

Should you delete a former employee's CRM emails?

Not by default, because customer conversations are business records and deleting them destroys context the next person needs. What you should do is decide a retention period rather than keeping them forever, and separately remove anything personal that synced by mistake. Those are two different jobs with two different justifications.

Do you need to keep the mailbox open after someone leaves?

That is a mail decision rather than a CRM one, and the two get confused. The CRM keeps its own copy of anything that synced, so closing the mailbox does not remove those records. Whether to keep the mailbox itself depends on forwarding needs and, in several jurisdictions, on retention obligations worth checking properly.

What should you do in the CRM before disabling an account?

Reassign first, then disable. Move their contacts, their open deals and any company where they were the named owner to whoever is taking over. Doing it in the other order leaves records pointing at a disabled user, which some tools hide from views entirely, so the work quietly disappears rather than moving.

How do you remove personal emails that synced from a leaver?

Search the CRM activity list for their known personal correspondents and domains rather than trying to read everything. Delete those entries and, if the exclusion rules were never set up, add them now so the same thing does not happen with the next person. This is much easier while their account still exists to search against.