Knowledgebase: ePreserver
Gmail error: Can not authenticate to IMAP server
Posted by Jim Beveridge on 21 February 2018 08:52 PM

(Applies to: ePreserver, Address Magic)

Symptom: You are converting email to Gmail and you get the error, "Can not authenticate to IMAP server: [ALERT] Please log in via your web browser: (Failure)"


First, Check that IMAP is turned on for Gmail as described in the link provided in the error message:

Assuming IMAP is turned on, are you using 2 factor authentication?
If yes, you'll need to generate an ASP (application-specific password.) at as described under, "How to generate an App password".
If no, enable Less Secure Apps at

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