Satya Prasad DV wrote: > Restarting the ldap service delivers the mails immediately. This > problem is happening only to some of the mails intermittently. There is no other > pattern except that the select hangs on the fd of the ldap socket. > Debug log for ldap shows that all queries are responded and socket in open state. > > Please help me in sorting out this issue.
Ldap connections are probably getting cached and not closed .. then you run out of connections for your ldap daemon. You could look at ldap clustering, or tune the ldap daemon .. Ask on comp.mail.sendmail though - this is rather too complex for ilughyd I think.
