On 06/08/2007, at 1:49 PM, Indunil Jayasooriya wrote: > I have a problem with Sendmail in CentOS 5. I want use > authentication for external access. I configure my sendmail.mc: > > TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl > define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 > LOGIN PLAIN')dnl > > But when send a message, show this message: > > Relaying denied. Proper authentication required. > > Any idea of the error? > > YES, > > 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 > > Then, These two are needed. > > chkconfig saslauthd on > /etc/init.d/saslauthd start > Also make sure you have the cyrus-sasl-md5 package installed if you want to use MD5 auth. By default, PLAIN auth information is disabled in sendmail... -- Steven Haigh Email: netwiz at crc.id.au Web: http://www.crc.id.au Phone: (03) 9017 0597 - 0404 087 474