IMAP authentication - what does this error message mean?

[henryp0p]

I am using IMAP to access an Outlook inbox

I am authenticating as so, taking the IMAP info from the account:

    var imap = new Imap({
        user: user.name,
        password: user.pass,
        host: 'outlook.office365.com',
        port: 993,
        tls: true
      });

This returns the following error

Error: LOGIN failed.
    at Connection._resTagged (/node_modules/imap/lib/Connection.js:1502:11)
    at Parser.<anonymous> (/node_modules/imap/lib/Connection.js:194:10)
    at Parser.emit (node:events:527:28)
    at Parser._resTagged (/node_modules/imap/lib/Parser.js:175:10)
    at Parser._parse (/node_modules/imap/lib/Parser.js:139:16)
    at Parser._tryread (/node_modules/imap/lib/Parser.js:82:15)
    at TLSSocket.Parser._cbReadable (/node_modules/imap/lib/Parser.js:53:12)
    at TLSSocket.emit (node:events:527:28)
    at emitReadable_ (node:internal/streams/readable:578:12)
    at processTicksAndRejections (node:internal/process/task_queues:82:21) {
  type: 'no',
  textCode: undefined,
  source: 'authentication'
}

I can't find any info on this error, can you see what I'm missing?

[baranbbr]

This looks correct, check your credentials and lastly Outlook have updated their website with IMAP connection errors, maybe this could help?

https://support.microsoft.com/en-us/topic/d088b986-291d-42b8-9564-9c414e2aa040

[henryp0p]

It looks like Outlook has recently stopped supporting Basic Auth through IMAP https://learn.microsoft.com/en-us/exchange/troubleshoot/administration/cannot-connect-mailbox-pop-imap-outlook

I think this might be the cause of the error.

[henryp0p]

@baranbbr thanks, I've read through their docs on this and enabled IMAP in the account so it doesn't look like this explains it

[shailendra-fxbytes]

It looks like Outlook has recently stopped supporting Basic Auth through IMAP https://learn.microsoft.com/en-us/exchange/troubleshoot/administration/cannot-connect-mailbox-pop-imap-outlook

I think this might be the cause of the error.

hello @henryp0p i have check the document and yes basic auth is disabled now so i have tried it with auth2.0 and adding token like this

const mailId = 'sstest@****.com';
const token =
'eyJ0eXAiOiJKV1QiLCJub25jZSI6ImRvd3R0S2draG1fVGN1T1g3S1p................';
const auth2 = btoa('user=' + mailId + '^Aauth=Bearer ' + token + '^A^A');

var imap = new Imap({
xoauth2: auth2,
host: 'outlook.office365.com',
port: 993,
tls: true,
debug: console.log,
authTimeout: 25000,
connTimeout: 30000,
tlsOptions: {
rejectUnauthorized: false,
servername: 'outlook.office365.com'
}
});

But now it gives error - IMAP Server Error Error: No supported authentication method(s) available. Unable to login.

Can you help me with this error. My project is already using your plugin and if it not worked i have to make all the things custom and which take too much time.

Waiting for your positive response.

[henryp0p]

it's been disabled now so as far as I understand you would have to change your email provider or create an Azure app with outlook access. Good luck