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Backup MX setup, Config Backup MX for mine and others

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hschneider

Posted: Jul 3 2004, 07:24 AM

No - I'm not an answering script ...
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Joined: 19-June 02

You just should give it a test run. It would be nice, if this topic could be cleared this way. There are many knowledge fragments flying around, but the complete solution is still missing.

>Worse it will get thrown away if the mailboxes don't exist on my server?

For this you'll need cmdaliases:

QUOTE

CMD ALIASES

CmdAliases implement aliases that are handled only through commands and
can be thought of as a user level implementation of custom domain
processing commands. The command set is the same of the one that is
described above ("Custom domain mail processing") and won't be explained
again here.

For every handled domain (listed inside 'domains.tab') a directory with
the same domain name is created inside the 'cmdaliases' subdirectory.
This directory is automatically created and removed when you add/remove
domains through the CTRL protocol (or 'CtrlClnt').

When a mail for 'USER@DOMAIN' is received by the server, the domain
'DOMAIN' is to be handled locally, and the standard users/aliases lookup
fails, a file named 'USER.tab' is searched inside
'$MAIL_ROOT/cmdaliases/DOMAIN'. If such file is found, commands listed
inside the file (whose format must follow the one described in the
previous section) are executed by the server as a matter of mail message
processing. An important thing to remember is that all domain and user
names, when applied to the file system, must be lower case.

The use of the command '[SMTP]' must be implemented with great care
because it could create mail loops within the server.

Furthermore:
Use "smtprelay" instead of "smtp". This delivers its target(s) directly without using DNS lookups, which should solve the loop problem.

QUOTE

[SMTPRELAY]
"smtprelay"[TAB]"server[:port],server[:port],..."[NEWLINE]

Send mail to the specified SMTP server list by trying the first, if
that fails, the second and so on.

Otherwise you can use this syntax:

"smtprelay"[TAB]"#server[:port],server[:port],..."[NEWLINE]

To have XMail random-select the order the specified relays.

Again:
If you or someone else manages to put these fragments together, a backup MX howto would be greatly appreciated.

--------------------

Bye,
Harald

-- Download XMail Queue Manager 1.46 NOW: XMail Server Tools
-- Cross platform remote queue management!
-- Message analyzing on the fly!
-- Builtin diagnostics knowledge base!
-- Manages multiple mail queues!

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nickp	Posted: Jul 3 2004, 06:43 PM
Newbie Group: Members Posts: 7 Member No.: 1187 Joined: 27-June 04	OK I have tested it and it works... no loops! How to create a backup server Assume Domain name = MyDomain.com Primary mailserver = mail.mydomain.com backup mailserver = mail2.mydomain.com 1) Set up MX record for mydomain.com so that mail is delivered to the primary server in preference to the backup e.g. mydomain.com. IN MX 10 mail.mydomain.com mydomain.com. IN MX 20 mail2.mydomain.com 2) On the backup server, create a customdomain tab for MyDomain.com name: MyDomain.com.tab content: "smtprelay"<tab>"mail.mydomain.com"<newline>

hschneider	Posted: Jul 3 2004, 07:18 PM
No - I'm not an answering script ... Group: Admin Posts: 6631 Member No.: 195 Joined: 19-June 02	Fine fine ... thank U! -------------------- Bye, Harald -- Download XMail Queue Manager 1.46 NOW: XMail Server Tools -- Cross platform remote queue management! -- Message analyzing on the fly! -- Builtin diagnostics knowledge base! -- Manages multiple mail queues! Sponsored by CD-Produktion und DVD-Produktion and Homestaging Saarland - Immobilien schneller verkaufen in der Region Saarland, Rheinland-Pfalz und Luxembourg

svenvg

Posted: Jul 6 2004, 10:28 AM

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Group: Members
Posts: 34
Member No.: 1088
Joined: 29-April 04

Great! ... or not?

Like I pointed out in one of the previous posts: this should do the trick, BUT with this the auto sync tool from Altaircom isn't working anymore.... and that is a pity, because if you are ISP like we are and you are hosting domains for your customers you have a lot of domains...

As I see it this can be overcome as long as you only have 2 servers, A primary one and a secondary one...

acording Xmail manual:

QUOTE

If a message that has as target domain of 'sub1.sub2.domain.net' arrives at the XMail server, 'AND' XMail does not have a real domain 'sub1.sub2.domain.net' inside its domain list, XMail decides if this domain gets a custom domain processing by trying to lookup:

sub1.sub2.domain.net.tab
.sub2.domain.net.tab
.domain.net.tab
.net.tab
.tab

inside the 'custdomains' directory.

So: I could make just the .tab file, meaning "all not local domains"...?

once you have more then 1 primary server for load balancing and 1 backup, then this will not work anymore...

just a thought..
Sven.

hschneider	Posted: Jul 6 2004, 10:46 AM
No - I'm not an answering script ... Group: Admin Posts: 6631 Member No.: 195 Joined: 19-June 02	>BUT with this the auto sync tool from Altaircom isn't working anymore Do you have closer infos about which config files are changed in which way by this tool ? >So: I could make just the .tab file, meaning "all not local domains"...? Yes! -------------------- Bye, Harald -- Download XMail Queue Manager 1.46 NOW: XMail Server Tools -- Cross platform remote queue management! -- Message analyzing on the fly! -- Builtin diagnostics knowledge base! -- Manages multiple mail queues! Sponsored by CD-Produktion und DVD-Produktion and Homestaging Saarland - Immobilien schneller verkaufen in der Region Saarland, Rheinland-Pfalz und Luxembourg

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