Mail Relay

[Jayson Keidel]

I am maintaining servers for several different organizations at
different physical locations. I would like to setup the servers so that
if the network access to "@company1.org" is lost (due to hardware
failure, for example), all mail for "company1.org" will be sent to
"company2.org" where it will be frozen until the "company1.org" server
come back online and mail can be delivered.

Currently, I have "company1.org" and "company2.org" in the domains.tab
for both servers. On the company1 server, I have smtpfwd.tab to point
mail for "company2.org" to "mail.company2.org", and vice-versa on
company2 server.

So far, it doesn't seem to be working.

Is what I'm trying to do possible, or will that mail be dropped when
connection is unavailable?
Is there another tab-file that needs editing?
Would it require a filter to do?

Thanks for your help.

-Jayson Keidel
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[Tjeerd Makel]

> I am maintaining servers for several different organizations at
> different physical locations. I would like to setup the servers so that
> if the network access to "@company1.org" is lost (due to hardware
> failure, for example), all mail for "company1.org" will be sent to
> "company2.org" where it will be frozen until the "company1.org" server
> come back online and mail can be delivered.
>
> Currently, I have "company1.org" and "company2.org" in the domains.tab
> for both servers. On the company1 server, I have smtpfwd.tab to point
> mail for "company2.org" to "mail.company2.org", and vice-versa on
> company2 server.
>
> So far, it doesn't seem to be working.
>
> Is what I'm trying to do possible, or will that mail be dropped when
> connection is unavailable?
> Is there another tab-file that needs editing?
> Would it require a filter to do?
>
> Thanks for your help.
>

Dear Jayson,

Did you add an extra MX-record for each domain? For example :

For "company1.org" :
MX PRI 10  mail.company1.org  --> Should be already there...
MX PRI 50  mail.company2.org  --> To be added (backup-mx).

For "company2.org" :
MX PRI 10  mail.company2.org  --> Should be already there...
MX PRI 50  mail.company1.org  --> To be added (backup-mx).

Yours,

Tjeerd



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[Jayson Keidel]

lol... sry, should've mentioned that.

I do have the mx records setup correclty. I did the setup many months
ago and only a few days ago one of the servers lost all connection
(someone put a shovel in the wrong place digging for gold, i guess) and
noticed lots of mail getting and ERELAY on the other server.

Tjeerd Makel wrote:

>> I am maintaining servers for several different organizations at
>> different physical locations. I would like to setup the servers so that
>> if the network access to "@company1.org" is lost (due to hardware
>> failure, for example), all mail for "company1.org" will be sent to
>> "company2.org" where it will be frozen until the "company1.org" server
>> come back online and mail can be delivered.
>>
>> Currently, I have "company1.org" and "company2.org" in the domains.tab
>> for both servers. On the company1 server, I have smtpfwd.tab to point
>> mail for "company2.org" to "mail.company2.org", and vice-versa on
>> company2 server.
>>
>> So far, it doesn't seem to be working.
>>
>> Is what I'm trying to do possible, or will that mail be dropped when
>> connection is unavailable?
>> Is there another tab-file that needs editing?
>> Would it require a filter to do?
>>
>> Thanks for your help.
>>
>
> Dear Jayson,
>
> Did you add an extra MX-record for each domain? For example :
>
> For "company1.org" :
> MX PRI 10  mail.company1.org  --> Should be already there...
> MX PRI 50  mail.company2.org  --> To be added (backup-mx).
>
> For "company2.org" :
> MX PRI 10  mail.company2.org  --> Should be already there...
> MX PRI 50  mail.company1.org  --> To be added (backup-mx).
>
> Yours,
>
> Tjeerd
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe xmail" in
> the body of a message to ecartis@...
> For general help: send the line "help" in the body of a message to
> ecartis@...
>
>

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[Tjeerd Makel]

This what I tried some time ago.

On the backup server (company2.org), create a customdomain tab for
company1.org

Filename: MailRoot/custdomains/company1.org.tab
content: "smtprelay"<tab>"mail.company1.org"<newline>

It worked for me...

Yours,

Tjeerd

> lol... sry, should've mentioned that.
>
> I do have the mx records setup correclty. I did the setup many months
> ago and only a few days ago one of the servers lost all connection
> (someone put a shovel in the wrong place digging for gold, i guess) and
> noticed lots of mail getting and ERELAY on the other server.
>
> Tjeerd Makel wrote:
>>> I am maintaining servers for several different organizations at
>>> different physical locations. I would like to setup the servers so th=

at
>>> if the network access to "@company1.org" is lost (due to hardware
>>> failure, for example), all mail for "company1.org" will be sent to
>>> "company2.org" where it will be frozen until the "company1.org" serve=
r
>>> come back online and mail can be delivered.
>>>
>>> Currently, I have "company1.org" and "company2.org" in the domains.ta=
b

>>> for both servers. On the company1 server, I have smtpfwd.tab to point
>>> mail for "company2.org" to "mail.company2.org", and vice-versa on
>>> company2 server.
>>>
>>> So far, it doesn't seem to be working.
>>>
>>> Is what I'm trying to do possible, or will that mail be dropped when
>>> connection is unavailable?
>>> Is there another tab-file that needs editing?
>>> Would it require a filter to do?
>>>
>>> Thanks for your help.
>>>
>>
>> Dear Jayson,
>>
>> Did you add an extra MX-record for each domain? For example :
>>
>> For "company1.org" :
>> MX PRI 10  mail.company1.org  --> Should be already there...
>> MX PRI 50  mail.company2.org  --> To be added (backup-mx).
>>
>> For "company2.org" :
>> MX PRI 10  mail.company2.org  --> Should be already there...
>> MX PRI 50  mail.company1.org  --> To be added (backup-mx).
>>
>> Yours,
>>
>> Tjeerd
>>
>>
>>
>> -
>> To unsubscribe from this list: send the line "unsubscribe xmail" in
>> the body of a message to ecartis@...
>> For general help: send the line "help" in the body of a message to
>> ecartis@...
>>
>>
> -
> To unsubscribe from this list: send the line "unsubscribe xmail" in
> the body of a message to ecartis@...
> For general help: send the line "help" in the body of a message to
> ecartis@...
>
>

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[CLEMENT Francis]

MX backups with two xmail server is a recurring topic :)

General setup is :

A - Set the 'mx backup server' as an MX for the domain
(a lowest priority is generaly set for the backup, except if you want to add
'mx load balancing' feature to the basic 'mx backup on primary mx failure'
feature)

B - on the 'mx backup server' you have two main different methods to do the
'mx backup' job :

B.1 - CUSTOM DOMAIN MAIL
PROCESSING(http://www.xmailserver.org/Readme.html#custom_domain_mail_process
ing)

Don't add the domain as an 'handled' domain on the 'mx backup server' but
simply add a 'custdomains' tab file with a "SMTPRELAY" command, ie :

For domain mydomain.com existing on 'primary server', add this file in the
''mx backup server' :

<mailroot>/custdomains/mydomain.com.tab

with this content :

"smtprelay"[TAB]"primary_mx_fqdn_or_ip"[NEWLINE]

The problem with this easy to setup mx backup is that the 'mx backup server'
will accept ANY mail for the domain even if the destination mail address is
invalid or not existing on the 'primary server'.
The alternative 'B.2' setup, does not have this problem, the 'mx backup
server' will reject immediatly unknow destinations :)

B.2 - Use cmdaliases files on the 'mx backup server'
(preferred method against 'accounts' with mailproc files)

B.2.1 - Setup the backup to handle the target domain

B.2.2 - For each 'primary server' emails to 'mx backup', on the 'mx backup
server' create a corresponding "cmdaliases" file, ie :

For the 'primary server' email myuser@..., create on the 'mx backup
server' the file

<mailroot>/cmdaliases/mydomain.com/myuser.tab

containing only this line :

"smtprelay"[TAB]"primary_mx_fqdn_or_ip"[NEWLINE]


That's all :)


(Could Davide add a chapter/annex on xmail doc for 'general mx backup setup
with xmail' ? If yes Davide, you are free to reuse my post and adapt if you
want :) )

Francis



-----Message d'origine-----
De: xmail-bounce@...
A: xmail@...
Date: 09/05/08 10:11
Objet: [xmail] Re: Mail Relay

lol... sry, should've mentioned that.

I do have the mx records setup correclty. I did the setup many months
ago and only a few days ago one of the servers lost all connection
(someone put a shovel in the wrong place digging for gold, i guess) and
noticed lots of mail getting and ERELAY on the other server.

Tjeerd Makel wrote:
>> I am maintaining servers for several different organizations at
>> different physical locations. I would like to setup the servers so
that
>> if the network access to "@company1.org" is lost (due to hardware
>> failure, for example), all mail for "company1.org" will be sent to
>> "company2.org" where it will be frozen until the "company1.org"
server
>> come back online and mail can be delivered.
>>
>> Currently, I have "company1.org" and "company2.org" in the
domains.tab

>> for both servers. On the company1 server, I have smtpfwd.tab to point
>> mail for "company2.org" to "mail.company2.org", and vice-versa on
>> company2 server.
>>
>> So far, it doesn't seem to be working.
>>
>> Is what I'm trying to do possible, or will that mail be dropped when
>> connection is unavailable?
>> Is there another tab-file that needs editing?
>> Would it require a filter to do?
>>
>> Thanks for your help.
>>
>
> Dear Jayson,
>
> Did you add an extra MX-record for each domain? For example :
>
> For "company1.org" :
> MX PRI 10  mail.company1.org  --> Should be already there...
> MX PRI 50  mail.company2.org  --> To be added (backup-mx).
>
> For "company2.org" :
> MX PRI 10  mail.company2.org  --> Should be already there...
> MX PRI 50  mail.company1.org  --> To be added (backup-mx).
>
> Yours,
>
> Tjeerd
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe xmail" in
> the body of a message to ecartis@...
> For general help: send the line "help" in the body of a message to
> ecartis@...
>
>

-
To unsubscribe from this list: send the line "unsubscribe xmail" in
the body of a message to ecartis@...
For general help: send the line "help" in the body of a message to
ecartis@...
-
To unsubscribe from this list: send the line "unsubscribe xmail" in
the body of a message to ecartis@...
For general help: send the line "help" in the body of a message to
ecartis@...

[Jayson Keidel]

thankyou all for the help

I'll give these a shot (now that other more pressing problems w/ other
software is fixed)

-Jayson

CLEMENT Francis wrote:

> MX backups with two xmail server is a recurring topic :)
>
> General setup is :
>
> A - Set the 'mx backup server' as an MX for the domain
> (a lowest priority is generaly set for the backup, except if you want to add
> 'mx load balancing' feature to the basic 'mx backup on primary mx failure'
> feature)
>
> B - on the 'mx backup server' you have two main different methods to do the
> 'mx backup' job :
>
> B.1 - CUSTOM DOMAIN MAIL
> PROCESSING(http://www.xmailserver.org/Readme.html#custom_domain_mail_process
> ing)
>
> Don't add the domain as an 'handled' domain on the 'mx backup server' but
> simply add a 'custdomains' tab file with a "SMTPRELAY" command, ie :
>
> For domain mydomain.com existing on 'primary server', add this file in the
> ''mx backup server' :
>
> <mailroot>/custdomains/mydomain.com.tab
>
> with this content :
>
> "smtprelay"[TAB]"primary_mx_fqdn_or_ip"[NEWLINE]
>
> The problem with this easy to setup mx backup is that the 'mx backup server'
> will accept ANY mail for the domain even if the destination mail address is
> invalid or not existing on the 'primary server'.
> The alternative 'B.2' setup, does not have this problem, the 'mx backup
> server' will reject immediatly unknow destinations :)
>
> B.2 - Use cmdaliases files on the 'mx backup server'
> (preferred method against 'accounts' with mailproc files)
>
> B.2.1 - Setup the backup to handle the target domain
>
> B.2.2 - For each 'primary server' emails to 'mx backup', on the 'mx backup
> server' create a corresponding "cmdaliases" file, ie :
>
> For the 'primary server' email myuser@..., create on the 'mx backup
> server' the file
>
> <mailroot>/cmdaliases/mydomain.com/myuser.tab
>
> containing only this line :
>
> "smtprelay"[TAB]"primary_mx_fqdn_or_ip"[NEWLINE]
>
>
> That's all :)
>
>
> (Could Davide add a chapter/annex on xmail doc for 'general mx backup setup
> with xmail' ? If yes Davide, you are free to reuse my post and adapt if you
> want :) )
>
> Francis
>
>
>
> -----Message d'origine-----
> De: xmail-bounce@...
> A: xmail@...
> Date: 09/05/08 10:11
> Objet: [xmail] Re: Mail Relay
>
> lol... sry, should've mentioned that.
>
> I do have the mx records setup correclty. I did the setup many months
> ago and only a few days ago one of the servers lost all connection
> (someone put a shovel in the wrong place digging for gold, i guess) and
> noticed lots of mail getting and ERELAY on the other server.
>
> Tjeerd Makel wrote:
>>> I am maintaining servers for several different organizations at
>>> different physical locations. I would like to setup the servers so
> that
>>> if the network access to "@company1.org" is lost (due to hardware
>>> failure, for example), all mail for "company1.org" will be sent to
>>> "company2.org" where it will be frozen until the "company1.org"
> server
>>> come back online and mail can be delivered.
>>>
>>> Currently, I have "company1.org" and "company2.org" in the
> domains.tab
>>> for both servers. On the company1 server, I have smtpfwd.tab to point
>>> mail for "company2.org" to "mail.company2.org", and vice-versa on
>>> company2 server.
>>>
>>> So far, it doesn't seem to be working.
>>>
>>> Is what I'm trying to do possible, or will that mail be dropped when
>>> connection is unavailable?
>>> Is there another tab-file that needs editing?
>>> Would it require a filter to do?
>>>
>>> Thanks for your help.
>>>
>> Dear Jayson,
>>
>> Did you add an extra MX-record for each domain? For example :
>>
>> For "company1.org" :
>> MX PRI 10  mail.company1.org  --> Should be already there...
>> MX PRI 50  mail.company2.org  --> To be added (backup-mx).
>>
>> For "company2.org" :
>> MX PRI 10  mail.company2.org  --> Should be already there...
>> MX PRI 50  mail.company1.org  --> To be added (backup-mx).
>>
>> Yours,
>>
>> Tjeerd
>>
>>
>>
>> -
>> To unsubscribe from this list: send the line "unsubscribe xmail" in
>> the body of a message to ecartis@...
>> For general help: send the line "help" in the body of a message to
>> ecartis@...
>>
>>
> -
> To unsubscribe from this list: send the line "unsubscribe xmail" in
> the body of a message to ecartis@...
> For general help: send the line "help" in the body of a message to
> ecartis@...
> -
> To unsubscribe from this list: send the line "unsubscribe xmail" in
> the body of a message to ecartis@...
> For general help: send the line "help" in the body of a message to
> ecartis@...
>
>

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To unsubscribe from this list: send the line "unsubscribe xmail" in
the body of a message to ecartis@...
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ecartis@...