You can change it yourself — no need to write to us. Your login e-mail address (and your password) live on the Security tab of your settings.
Change your login e-mail address
Click your name at the bottom of the left sidebar to open the account menu, then click Settings.
Open the Security tab.
Scroll to the Email address section. Current email shows the address you sign in with today; it is read-only.
Type the new address into New email address and click Change email.
You'll see this: We sent a confirmation link to your current email address. Click it to finish the change. Open that mailbox, click the link, and the change is done.
The link goes to your CURRENT address, not the new one. That is the safeguard: nobody can move your account to another mailbox without access to the one you have now. Until you click the link, you keep signing in with the old address.
If something goes wrong
Enter a valid email address. — the address has a typo in it.
This email address is already in use. — another OptiMonk user is signed up with that address. Pick a different one, or remove the other user first.
Could not change your email. — the change didn't go through; try again in a minute.
Change your password
The same tab holds the Password section:
Fill in Current password, New password and Confirm new password.
Click Change password. You'll see Password changed successfully.
The new password has to be at least 8 and at most 32 characters, and the two new-password fields have to match.
What this does and doesn't change
It changes your own login — the address you sign in with. Everyone in the account has their own login, so a colleague changes theirs on their own Security tab.
It does not change your billing e-mail or your invoicing details. Those live on the Billing tab.
It does not move the account to a different owner. To add or remove people, use the Users tab (Settings → Users).
When you still need us
Write to us if you have lost access to the current mailbox — for example the colleague whose address the account was opened with has left. In that case you can't receive the confirmation link, so we have to make the change for you. Tell us the current and the new e-mail address of the account, and we'll take care of it.
💡 Tip: every settings page has a chat rail next to it. On the Security tab it greets you with Hi! You're on Security. Ask me about passwords, your login email, or any other setting. — so "How do I change my login email?" is answered right there.