http://bugzilla.opensuse.org/show_bug.cgi?id=1194265 Bug ID: 1194265 Summary: postfix: sasl authentication with password fails Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.3 Hardware: x86-64 OS: openSUSE Leap 15.3 Status: NEW Severity: Normal Priority: P5 - None Component: Network Assignee: screening-team-bugs@suse.de Reporter: bugzilla@singvogel.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Setup a SASL password authentication as described here: http://www.postfix.org/SASL_README.html In general: /etc/sasl2/smtpd.conf pwcheck_method: auxprop auxprop_plugin: sasldb mech_list: plain login DIGEST-MD5 /etc/postfix/main.cf: smtpd_sasl_path = smtpd Add user: saslpasswd2 -c -u example.com username Check for user: sasldblistusers2 Restart/reconfigure postfix: systemctl restart postfix Configure some client (like thunderbird) to communicate with mailer (for tests don't configure TLS): server name: your server Port: 25 Connection security: None Authentication method: Password, transmitted insecurely Username: as above Later give password as above Try to send some e-mail from client via above mail server. The error message occurs in journalctl Jan 03 18:32:55 server postfix/smtpd[13543]: warning: SASL authentication failure: Could not open db `/etc/sasldb2 Jan 03 18:32:55 server postfix/smtpd[13543]: warning: SASL authentication failure: Password verification failed Jan 03 18:32:55 server postfix/smtpd[13543]: warning: pXXXXXXXX.dip0.t-ipconnect.de[80.XX.XXX.XX]: SASL PLAIN authentication failed: generic failure This worked in openSUSE-15.2 before. I think it's related to the change of database format: BDB -> GNU dbm And the fact that postfix is not capable of "GNU dbm": postconf -m | grep -i dbm -- You are receiving this mail because: You are on the CC list for the bug.