RE: Freebsd quota sendmail

2008-02-28 Thread Ted Mittelstaedt


 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] Behalf Of Derek Ragona
 Sent: Wednesday, February 27, 2008 10:49 AM
 To: Ofloo; freebsd-questions@freebsd.org
 Subject: Re: Freebsd quota  sendmail


 At 12:29 PM 2/27/2008, Ofloo wrote:

 I'm putting this under freebsd because there is no forum for
 sendmail, and it
 does concern freebsd as well.
 
 My problem is this, when i set quota in /var/mail directory to
 each user and
 this user creates a cronjob, that doesn't forward all data to
 /dev/null, and
 keeps on generating mail, ..
 
 Well after a while the mail file reaches it's quota and sendmail isn't
 allowed to write to that file anymore, so it will start and fill
 the mailq,
 ..
 
 The point is after a while the whole system will just crash what can I do
 about it, sorry for rambling.

 Why are you setting these quotas on /var/mail.  These days with disk so
 cheap, why bother?

It depends on how he has his server setup.

Suppose he had a 250-employee company where for reasons of
data security (remember the courts have ruled e-mail is
company documentation and subject to document retention
laws) everyone is running IMAP to the mailserver and
most of the employees are very lazy about deleting old
mail, or downloading attachments they get to local
systems (or better yet, NOT using the e-mail system
as a file-sharing network, good luck with that) and he
has a 200GB hard disk.  I can see the desire to limit people
to 500-700MB per mailbox.

The other thing is with a server, the disk space is usually
a lot more expensive because it's raided or mirrored, it's
high-speed drives, etc.

Ted

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Re: Freebsd quota sendmail

2008-02-27 Thread Chuck Swiger

On Feb 27, 2008, at 10:29 AM, Ofloo wrote:
I'm putting this under freebsd because there is no forum for  
sendmail, and it

does concern freebsd as well.


Well, there's comp.mail.sendmail on Usenet.

My problem is this, when i set quota in /var/mail directory to each  
user and
this user creates a cronjob, that doesn't forward all data to /dev/ 
null, and

keeps on generating mail, ..

Well after a while the mail file reaches it's quota and sendmail isn't
allowed to write to that file anymore, so it will start and fill the  
mailq,

..


What you've described seems to be normal system operation.  Solutions  
include people fixing their cron jobs, having people actually read and  
delete their emails before they fill their allocated quota, or  
spending more admin cycles cleaning up when you notice someone getting  
to this problem condition.  I suppose you could also get more disk  
space for /var...


--
-Chuck

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Re: Freebsd quota sendmail

2008-02-27 Thread Derek Ragona

At 12:29 PM 2/27/2008, Ofloo wrote:


I'm putting this under freebsd because there is no forum for sendmail, and it
does concern freebsd as well.

My problem is this, when i set quota in /var/mail directory to each user and
this user creates a cronjob, that doesn't forward all data to /dev/null, and
keeps on generating mail, ..

Well after a while the mail file reaches it's quota and sendmail isn't
allowed to write to that file anymore, so it will start and fill the mailq,
..

The point is after a while the whole system will just crash what can I do
about it, sorry for rambling.


Why are you setting these quotas on /var/mail.  These days with disk so 
cheap, why bother?  If you are trying to better control sendmail, you 
should exercise the control there.  You can adjust sendmail for maximum 
message size, number of messages, etc.  Or if SPAM is the issue use 
mailscanner to control how spam is handled.


Adding disk quotas outside of sendmail as you found is not a good approach 
as it will bring the system down.


-Derek

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