leam hall: > Apr 29 15:37:26 client sendmail[15767]: s3TJbQGQ015767: > s3TJbQGR015767: DSN: Host unknown (Name server: 2.3.4.5: host not > found)
That is Sendmail not Postfix. Is is unable to deliver some mail. > Apr 29 15:37:26 client postfix/smtpd[15771]: connect from > localhost.localdomain[127.0.0.1] That is Postfix. It is receiving a "delivery error report" from Sendmail. This machine runs both Postfix and Sendmail. You need to fix that first. How? That depends on the OS distribution that you are using. Wietse