Hello everyone,
Im having a issue that I just cant seem to figure out. We currently are running an email server Centos 5.6 Postfix/Dovecot with a squirrelmail frontend. I was setting up a testbed to do a migration to SoGo using LDAP/MYSQL/POSTFIX/Dovecot. I have everything up and functional but one thing is giving me an issue. The testbed box will not handle a users mailbox over 2gb. We are using mbox on the existing server with no issues at all. I have multiple users with inboxes over 2gb and and archive mbox file with over 50gb. I have check postfix and made sure that the mailbox_size_limit = 0 Both are running i686 as returned by the arch command and both are Centos version 5.6. Any ideas would be greatly appreciated.
On Monday 27 June 2011 21:25:42 Bo Lynch wrote:
Hello everyone,
Im having a issue that I just cant seem to figure out. We currently are running an email server Centos 5.6 Postfix/Dovecot with a squirrelmail frontend. I was setting up a testbed to do a migration to SoGo using LDAP/MYSQL/POSTFIX/Dovecot. I have everything up and functional but one thing is giving me an issue. The testbed box will not handle a users mailbox over 2gb. We are using mbox on the existing server with no issues at all. I have multiple users with inboxes over 2gb and and archive mbox file with over 50gb. I have check postfix and made sure that the mailbox_size_limit = 0 Both are running i686 as returned by the arch command and both are Centos version 5.6. Any ideas would be greatly appreciated.
Did you checked the ulimits? Try adding: ulimit -f unlimited to the postfix/dovecot init scripts. Also if you are chrooting postfix or dovecot, check the limits in /etc/security/limits.conf.
Marian
On Mon, June 27, 2011 2:32 pm, Marian Marinov wrote:
On Monday 27 June 2011 21:25:42 Bo Lynch wrote:
Hello everyone,
Im having a issue that I just cant seem to figure out. We currently are running an email server Centos 5.6 Postfix/Dovecot with a squirrelmail frontend. I was setting up a testbed to do a migration to SoGo using LDAP/MYSQL/POSTFIX/Dovecot. I have everything up and functional but one thing is giving me an issue. The testbed box will not handle a users mailbox over 2gb. We are using mbox on the existing server with no issues at all. I have multiple users with inboxes over 2gb and and archive mbox file with over 50gb. I have check postfix and made sure that the mailbox_size_limit = 0 Both are running i686 as returned by the arch command and both are Centos version 5.6. Any ideas would be greatly appreciated.
Did you checked the ulimits? Try adding: ulimit -f unlimited to the postfix/dovecot init scripts. Also if you are chrooting postfix or dovecot, check the limits in /etc/security/limits.conf.
Marian
Added the ulimts -f unlimited to both init scripts. Same issue. Also checked the limits.conf file. Everything in it is rem out. Still having the same issues. My log file states...... cannot update mailbox /var/mail/farmer for user farmer. cannot open file: File too large
Bo Lynch wrote: [...]
frontend. I was setting up a testbed to do a migration to SoGo using LDAP/MYSQL/POSTFIX/Dovecot.
[...]
file with over 50gb. I have check postfix and made sure that the mailbox_size_limit = 0
[...]
My log file states...... cannot update mailbox /var/mail/farmer for user farmer. cannot open file: File too large
http://www.linuxquestions.org/questions/linux-networking-3/file-too-large-in...
IOW, check virtual_mailbox_limit also.
On Mon, June 27, 2011 8:18 pm, Christopher Chan wrote:
On Tuesday, June 28, 2011 03:01 AM, Bo Lynch wrote:
/var/mail/farmer for user farmer. cannot open file: File too large
self compiled postfix? _______________________________________________
No self compiled postfix....it appears to be something with the MDA. If I tell postfix to use procmail it works just fine. However after doing some reading I have heard some pretty good things about Dovecot LDA. So I'm gonna try that I guess. What does postfix use as a default MDA? Any recomendations on procmail vs Dovecot LDA? Thanks again for all your help
Bo
Bo Lynch blynch@ameliaschools.com wrote:
Any recomendations on procmail vs Dovecot LDA? Thanks again for all your help
If you're running into problems due to the size of mailboxes, using an MDA that does storage as one file per message is a good idea. One excellent one that is also available on CentOS is the Cyrus IMAPd (does POP too). It's very robust and scalable. When I changed over years back, the difference in performance (and latency as seen by users) was amazing.
Devin
Devin Reade wrote on Tue, 28 Jun 2011 07:06:20 -0600:
One excellent one ... is ... Cyrus
Basically all of them can do it. As you may have noticed he obviously *wants* mbox format. If he would want to change to mailfolder format he doesn't have to change *any* of his software mix. I, too, would recommend moving away from mbox format if he has such large boxes, though.
Kai
On Tuesday, June 28, 2011 07:54 PM, Bo Lynch wrote:
On Mon, June 27, 2011 8:18 pm, Christopher Chan wrote:
On Tuesday, June 28, 2011 03:01 AM, Bo Lynch wrote:
/var/mail/farmer for user farmer. cannot open file: File too large
self compiled postfix? _______________________________________________
No self compiled postfix....it appears to be something with the MDA. If I tell postfix to use procmail it works just fine. However after doing some reading I have heard some pretty good things about Dovecot LDA. So I'm gonna try that I guess. What does postfix use as a default MDA? Any recomendations on procmail vs Dovecot LDA? Thanks again for all your help
Like devin suggested, change your mail store format to maildir and get a whole host of benefits over mbox. All filesystems in Centos 5 have indexed/hashed directories so you should not have problems with thousands of email in each mailbox.
As for your lda, choose whatever you can support. I don't know whether you have to generate filter recipes or not but take those into account if you do. I personally am using postfix and dovecot lda with sieve support.
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Bo Lynch -
Christopher Chan -
Devin Reade -
Kai Schaetzl -
Marian Marinov -
Mário Barbosa