hello friends
i am planning to config qmail server for a big production system ,
but am confused what to use (sendmail or qmail) , i am a newbie as far as
qmail is concern , but was using sendmail for past some time
i have installed and tested qmail , but still have some doubts
, please help me
1> how can i load balance as well as run redundent qmail processes ( like
qmaild,qmail-smtpd , others )
so that in case of some software/hardware failure will not cause any
mail service outage
2> how can i tell my qmail to relay just for some range of ip networks
3> how can i tell my qmail to accept mails only from those domains who
have valid DNS MX records
4> suppose my mail server is accepting mails for first.com ,second.com etc
domains ,
so how can i masquarade mails relayed through my qmail-SMTP server ( that
coming from SMTP clients like microsoft's outlook , netscape messanger etc
clients)
means if UID belongs to first.domain then it should be masquaraded as
[EMAIL PROTECTED] if otheruser belongs to second domain then it should go as
a [EMAIL PROTECTED]
i think in SMTP it simply passes address that user had configured in
his/her SMTP client , so how to masquarade that address with
qmail,
5> users belonging to same domain can have mailboxes on seperate hosts
i am using qmail-ldap patch
in which there are atteributes like
MailMessageStore
Mailhost
but its not working
for say "user1" have id "[EMAIL PROTECTED]" with
MailMessageStore : /home/user1/email/Maildir
Mailhost : Host1
and "USER2" have ID "[EMAIL PROTECTED] " with
MailMessageStore : /home/USER2/email/Maildir
Mailhost : host2
both these are virtual users and does't have system account , they are
there in LDAP ,
have ~/control/ldapuid
~/control/ldapgid
having uid and gid of one system user that i have created just to
specify here (in ldapuid,ldapgid control file)
this user owns home directory of all the users who doent have system
account and just have LDAP account
but my problem is when i specify diff MailHost ? ( other then the host
on which i have created that special system user) who should own
homedir/maildir on that other Mailhost ,
is there any work around for this problem
with warmest regards
thanks a lot
Prashant Desai
