2023-10-24 19:18 UTC: We're pleased to inform you that a bugfix has been successfully deployed to address the Azure AD login issues on our website. You should now be able to access the lette.io console without any difficulties. Should you encounter any lingering problems, please don't hesitate to contact us at hello@lette.io. Our team is standing by to assist you.
2023-10-24 12:44 UTC: We'd like to inform you that we're currently addressing login issues on our website interface, which have arisen due to recent changes in Microsoft's login mechanism. Rest assured, our team is actively working on resolving this issue. We're pleased to inform you that our proxy service remains fully operational without any disruptions.

Keep using Exchange Online with basic authentication.

lette.io accepts your basic authentication login requests and performs modern authentication with Exchange Online in the background.
IMAP commands between your email clients and Exchange Online are proxied through lette.io. Find more details in our docs.

Pricing after a 14 days free trial:

Mailbox Monthly price per mailbox
1 to 5 $7
6 and above $5

Do you want to access a large number of mailboxes or do you want to run your personal instances of the lette.io proxy? Get in contact with us.

lette.io overview

How to get up & running

1) App registration

Grant the lette.io application authorization to access specific mailboxes within your Microsoft tenant.

2) lette.io configuration

Add the mailboxes you wish to proxy and set the credentials that can be used by your email clients.

3) Email clients configuration

Configure your email clients to connect to lette.io instead of Exchange Online using IMAP(S).

Read the docs for the details on how to configure lette.io.