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Linux PostX

Posted on 2013-06-06
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Last Modified: 2013-06-12
My company has an old PostX server which I'm in the process of retiring. I have never used the PostX application before. I'm trying to see what the default email retention value is set to. In other words email will be deleted in "X day" if the user does not retrieve the email.

I check the /etc/postfix/mai.cf file but did not see anything regarding this setting.
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Question by:compdigit44
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noci earned 500 total points
ID: 39229231
postfix server..., PostX is something that is not well known name. postfix is.
Postfix implements a MTA mail transfer agent.
MTA's receive mail and send it on the either another MTA (non local addresses),
or MDA's Mail delivery agents.

An MTA should keep trying to deliver data, but mail return a NonDeliveryReport if it cannot find the next hop MTA or an MDA in a timely fashion. (1 week or so).

Now there can be scripts that clean out mailboxes of users when mail isn't read soon enough.
It has nothing to do with Postfix.

Then it depends on your mailbox architecture. Are you using an IMAP server if so which one (cyrus, courier, dovecot, ??other??). or a POP server (courier, dovecot, ??other??) What mailbox format is involved mailfile?, maildir?, other?

Maybe you should check the crond deamon config for jobs that regularly clean out mailbox's
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by:compdigit44
ID: 39229932
Thanks for the reply. User are retrieving email via a web browser interface. I'm checking the cron tab now
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by:compdigit44
ID: 39229941
Nothing is listed in the crontab
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Expert Comment

by:noci
ID: 39230375
What is the webbrowser interface?
Most of those require an IMAP backend.

did you also check the /etc/crond* directories?
those contain the hourly, daily & monthly jobs.
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by:compdigit44
ID: 39234907
I have check the crontab and it does reference the cron daily, weekly etc.... jobs but nothing is configured for them.

In regards to the web browser external users are using a mix of IE 8+ or Firefox
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by:noci
ID: 39235886
I mean what program are you using to allow webbased mail...
squirrel? roundcube?..

A browser cannot read IMAP/POP by itself. Either way you mail chain is:


SMTP ==> MAIL SERVER => local delivery ==> MBX ==> POP/IMAP ==> webinterface server ==> HTML ==> browser ==> user .
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by:compdigit44
ID: 39237890
Thank you for your reply but honestly I do not know the answer to your question.

I did not setup this server nor have I ever used PostX before...

Sorry..
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Expert Comment

by:noci
ID: 39239867
if you look at the screen of the web interface if will mention some name somewhere..
wel known ones:
- squirrel....
- roundcube


Check the top/bottom lines of the screen.
The <HEAD> html section might give a clue (looking at the html source).
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by:compdigit44
ID: 39240819
Thanks for the suggestion.

THe only items on the external PostX site is the login box for the user, company banding icons and copyright for PostX 2001 - 2006.

The Source for this pages references websafe??
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by:compdigit44
ID: 39242446
I figured out the answer to my own question.

I didn't realize PostX had a GUI admin interface LOL!!!
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