On Wed, Mar 27, 2019 at 02:40:36PM -0700, James Moe wrote: > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-sma-inc.us we trust you > sma-station14l.sma.com > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-DSN > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-SIZE > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-AUTH LOGIN PLAIN CRAM-MD5 DIGEST-MD5 > GSSAPI > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-NO-SOLICITING > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-8BITMIME > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250-HELP > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: < > mail.sma.com[192.168.69.246]:5025: 250 EHLO
The server offers multiple SASL mechanisms, including GSSAPI. > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: > smtp_sasl_authenticate: mail.sma.com[192.168.69.246]:5025: SASL mechanisms > LOGIN PLAIN CRAM-MD5 DIGEST-MD5 GSSAPI The client's SASL library supports multiple mechanisms, including GSSAPI. > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: GSSAPI client > step 1 The SASL library chooses GSSAPI > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: warning: SASL > authentication failure: GSSAPI Error: Unspecified GSS failure. Minor code > may provide more information (No Kerberos credentials available (default > cache: DIR:/run/user/51/krb5cc)) despite lack of GSSAPI credentials, and fails. > 2019-03-27T14:16:57-0700 sma-station14l postfix/smtp[19939]: connect to > subsystem private/defer Try: http://www.postfix.org/postconf.5.html#smtp_sasl_mechanism_filter smtp_sasl_mechanism_filter = plain -- Viktor.