Total Disaster recovery Hi, I had an recent experience that my RAID 10 set-up on an DELL server [4years old] crashed 2/4 hard drives simultainious due to heat. I recovered fully except for the smtp auth login. I did however upgraded from Mandriva 2006->2007 and this sample is on the non-working server. Code: 220 hera.domain.tld ESMTP Postfix (2.3.3) (Mandriva Linux) ehlo localhost 250-hera.domain.tld 250-PIPELINING 250-SIZE 10240000 250-ETRN 250-STARTTLS 250-AUTH GSSAPI CRAM-MD5 LOGIN DIGEST-MD5 PLAIN 250-AUTH=GSSAPI CRAM-MD5 LOGIN DIGEST-MD5 PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN auth login 334 VXNlcm5hbWU6 anBi 334 UGFzc3dvcmQ6 Ymo3NzYtb3Jn 535 5.7.0 Error: authentication failed: authentication failure On the other serve it works ! My question is the diffeence is in the lines 250-AUTH GSSAPI CRAM-MD5 LOGIN DIGEST-MD5 PLAIN vs 250-AUTH LOGIN PLAIN Code: telnet localhost 25 Trying 127.0.0.1... Connected to beta.domain.tld (127.0.0.1). Escape character is '^]'. 220 beta.domain.tld ESMTP Postfix (2.3.3) (Mandriva Linux) ehlo localhost 250-beta.domain.tld 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN auth login 334 VXNlcm5hbWU6 anBi 334 UGFzc3dvcmQ6 Ymo3NzYtb3Jn 235 2.0.0 Authentication successful The beta server is an plain newly setup box same as above but it works! Can Someone tell me were to look and what files to be edited / compared?