Issue in imap communication with Exchange server

Aspose.Email Product Family
21

Hello @fhediger,

Thank you,
we have added this information to the ticket and will continue to investigate this issue.

22

Hello @fhediger,

We have added CredentialsEncoding support to the AUTHENTICATE command.
Could you check the issue on your side using the 23.8.0.3 hotfix

ImapClient client = new ImapClient(..
client.setCredentialsEncoding("ISO-8859-1");
...
23

Hi @sergey.vivsiuk

I tried your fix, unfortunately it didn’t work. I don’t think the imap.log is of any use, as it shows only “AUTHENTICATE PLAIN ****” and that authentication fails.

Did you verify that your base64 auth string matches the one generated by my command?

echo -en "\0<username>\0<password in utf8>" | iconv -f utf8 -t iso8859-1 | openssl base64
24

@fhediger,

Thanks for your feedback. Our developers will investigate the issue and contact you asap.

25

Hello @fhediger,

Yes, the base64 auth string for “AUTHENTICATE PLAIN” matches the generated by command:

AHX2AHD2

For the test I used the following test data (user “uö”, password “pö”):

echo -en "\0uö\0pö" | iconv -f utf8 -t iso8859-1 | openssl base64

Please note that the IMAP test also uses “iso8859-1” encoding:

setCredentialsEncoding("iso8859-1")
26

@fhediger,

We have added an ImapClient debug option to show credentials in the log:

EmailClient.setShowCredentialsInLog(true);

try (ImapClient client = new ImapClient(
        ImapUrl,
        ImapPort,
        "uö",
        "pö",
        SecurityOptions.SSLImplicit)) {
    client.setCredentialsEncoding("iso8859-1");
    client.setLogFileName("imapLog");;
    client.noop();
}

23.8.0.4 hotfix release

27

@sergey.vivsiuk

Thank you, I will try this again with the credential Log! :+1:

28

@sergey.vivsiuk

I tested again and now it works! But to be honest I think that was a problem on my end. I think I packaged an old jar by mistake. Sorry for that.

It works now with the iso-8859-1 encoding (it works with iso8859-1 or iso-8859-1).

So thank you for all the quick responses and fixes :pray:

29

@fhediger,

Thanks for the feedback, we’re glad it worked out for you.