I have a user who currently uses a mailstreet account. We are trying to synchronizes her mails from mailstreet to her Zimbra account using the following command.

imapsync --syncinternaldates --host1 mail.MSE17.exchange.ms --user1 mse12\Username --passfile1 pass1 --host2 --user2 user@domain.com --passfile2 pass1 --port2 7143 --noauthmd5 ipsize --useheader subject --useheader date

This generates the following error message

[mail.MSE17.exchange.ms] with user [mse12Username] auth [LOGIN]: 3 BAD Command received in Invalid state

It looks like it doesn't like the username with mse12\Username.
I think it cannot recognize the / in the username.

Is there any different command we can run with the IMAP Sync to get it to recognize the / in the username ??