<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=Big5" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hello Alex, For the mc file : define(`confAUTH_OPTIONS', `A')dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl But now, we just found the IP address of smtp is blocked by the CBL of <a class="moz-txt-link-freetext" href="http://cbl.abuseat.org/">http://cbl.abuseat.org/</a>... So, is there any solution ? Edward. Alexander Dalloz wrote: <blockquote cite="mid46EEC4A2.9040201@uni-x.org" type="cite"> <pre wrap=""><a class="moz-txt-link-abbreviated" href="mailto:edwardspl@ita.org.mo">edwardspl@ita.org.mo</a> schrieb: </pre> <blockquote type="cite"> <pre wrap="">Hello Alex, I just found the method ( the setting of mc file ) is fail ( password is correct, but auth is fail )... So, any more help ? Edward. </pre> </blockquote> <pre wrap=""> Please be specific about your setup! Does saslauthd run (given that you use that)? service saslauthd status cat /etc/sysconfig/saslauthd cat /usr/lib/sasl2/Sendmail.conf egrep -v '^#|^$' /etc/mail/sendmail.mc Does testsaslauthd succeed? What is the exact logging of the AUTH error? Maybe increase the default LOG_LEVEL from 9 to 15. Alexander </pre> </blockquote> </body> </html>