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I installed qpopper-4.0.5 from source; configured it with the --disable-specialauth option and compiled, but I always have the following error when connecting to my mailbox:
-ERR [AUTH] Password supplied for "username" is incorrect
The error is the same regardless of whether I try to login via telnet or a mail client, and to what user account.
There is a delay of cca. 10 s before rejecting the request. (When I set the mail client to use encrypted authentication, the connection is rejected without delay)
I want qpopper to use /etc/passwd for authentication and let me in. Is it possible?
qpopper should be using /etc/passwd for authentication. Can you take a look at you system's maillog for qpopper errors? You might also want to check syslog (messages) for authentication errors. It might be a pam restriction that is in place.
I've compiled qpopper 4.0.5 many times before and have never seen this problem before... I prefer qpopper over the pop3 server from the imap server package because it is leaner.
/var/log/maillog does not contain any error messages but those of sendmail
/var/log/messages contains the same error message plus the following:
[AUTH] failed attempted login to username from host (cross.foo.bar) 192.168.226.3.
As for the pam restriction: can pam restrictions prevail even if I have the default installation?
I did not change the default configuration options except for using the --disable-specialauth option.
Pam restrictions can be placed on the qpopper completely isolated from the actual installation of qpopper itself. If you are running qpopper from xinetd, there could be a host restriction in the xinetd configuration... Without more information, I can't be sure.
So you've got no /etc/shadow file? This is a pretty good indication that you're not using shadow passwords, so all your passwords are actually being stored in /etc/passwd (I think). This also means that you should compile qpopper with --disable-specialauth. I'm not sure what the default is, but if your not using shadow passwords, you'll want this disabled.
See botton of page 17: ftp://ftp.qualcomm.com/eudora/server...pper/GUIDE.pdf
There's no problem with running qpopper from xinetd, that's how I've always done it. It can be run standalone if compiled with --enable-standalone, but that's not a problem here. Just for giggles, what does your /etc/xinetd.d/popper file (or similar) contain?