how to limit recipients by class of user?

(sorry if this is posted twice) Hello, I am trying to determine the best way to limit who my users can email. I am using a Redhat/Squirrelmail/Dovecot/Postfix configuration. I have 3 categories of users, and each category has a separate "address book" in Squirrelmail, and I need to limit who the

how to limit recipients by class of user?

Hello, I am trying to determine the best way to limit who my users can email. I am using a Redhat/Squirrelmail/Dovecot/Postfix configuration. I have 3 categories of users, and each category has a separate "address book" in Squirrelmail, and I need to limit who the user can send mail to the addres

Possible to selectively limit allowed attachments in Postfix?

Is it possible to block some users from sending attachments, and to allow other users to send acceptable attachements? For example, any user who's name that starts with "untrusted", is not allowed to send any attachments. So, "untrusted001" and "untrusted002" could not send attachments. Also, use

Re: Cannot use restrictions to block emails between local users.

> Chances are you'll need to modify the webmail software so that it > sends mail via SMTP, then maybe you'll be able to reject it as you > want to (this will depend on the webmail software setting the right > sender address). Hurray, that worked! I was able block an email after changing SquirrelM

Cannot use restrictions to block emails between local users.

I am working on a Webmail solution, that uses Squirrelmail, Postfix, and Dovecot. I am trying to block email between users, and I don't seem to be able to do this. I was having trouble blocking emails selectively, so now I just trying to block all emails - to make sure it is working. In my main.c

Re: Limiting maildir sizes with Postfix?

Jones wrote: > Xn Nooby wrote: >> >> I have a small Squirrelmail server, using Postfix & Dovecot. I am >> trying to limit the amount of mail a user can get. The >> "mailbox_size_limit" value does not seem to be being honored. I am >> using the Maildir dir

check_recipient_access does not seem to be working for me

I'm using Postfix on RHEL5. I want my local users to only be able to send and receive emails from users on another mail server, I do not want local users to be able to email eachother. I have not been able to prevent local users from emailing eahcother. It seems my check_recipient_access is not wo

Limiting maildir sizes with Postfix?

I have a small Squirrelmail server, using Postfix & Dovecot. I am trying to limit the amount of mail a user can get. The "mailbox_size_limit" value does not seem to be being honored. I am using the Maildir directory format. >From googling, it appears that "mailbox_size_limit" applies to a single f

Re: Getting localhost put in my From field

On Tue, Feb 10, 2009 at 8:05 AM, Wietse Venema wrote: > Xn Nooby: >> I have been trying to figure out how to get Postfix to not append >> "localhost" in to the From: field. I am sending email mostly between >> two local users, using RHEL5/Squirrelmail/Postfix/Dove

Getting localhost put in my From field

I have been trying to figure out how to get Postfix to not append "localhost" in to the From: field. I am sending email mostly between two local users, using RHEL5/Squirrelmail/Postfix/Dovecot. When I send an email from user_...@schoolretail.local to user_...@schoolretail.local it arrives

Re: Possible to get mailbox_size_limit warning in an email?

I was able to get the Squirrelmail plugin to work with the Dovecot IMAP server. It works, and looks good, but I have to specify the maximum mailbox size in another location (the dovecot.conf). On Wed, Jan 21, 2009 at 7:41 AM, Xn Nooby wrote: > Is it possible to have Postfix issue a warn

Possible to get mailbox_size_limit warning in an email?

Is it possible to have Postfix issue a warning when the "mailbox_size_limit" is about to be reached? Perhaps emailing the user once per day, that they are almost out of space? I am using Ubuntu 8.10, Postfix 2.5.5, Dovecot 1.1.4, Squirrelmail 1.4.15, with Maildir directories. There is a Squirrel

Re: Trying to use uppercase names in Postfix.

> Your options are: > > 1) Create lower-case UNIX password file entries with the same > numerical UID and GID fields as the upper-case names, and with a > "*" password. I was able to resolve my problem by creating the duplicate entry in the /etc/passwd file, I will use this method. I might uses

Re: Trying to use uppercase names in Postfix.

le = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes theu...@vcorpmail:~$ cat /etc/postfix/aliases jim123: JIM123 theu...@vcorpmail:~$ On Mon, Dec 29, 2008 at 4:32 PM, Sahil Tandon wrote: > Xn Nooby wrote: >

Re: Trying to use uppercase names in Postfix.

On Mon, Dec 29, 2008 at 3:51 PM, Noel Jones wrote: > Bryan Irvine wrote: >> >> On Mon, Dec 29, 2008 at 11:12 AM, Xn Nooby wrote: >>> >>> I am using Postfix to replace an existing email system, and I am >>> inheriting usernames that are in uppercase.

Re: Trying to use uppercase names in Postfix.

On Mon, Dec 29, 2008 at 3:02 PM, Wietse Venema wrote: > Xn Nooby: >> I am using Postfix to replace an existing email system, and I am >> inheriting usernames that are in uppercase. Apparently Postfix >> converts all email addresses to lowercase, so I cannot receive mail to

Trying to use uppercase names in Postfix.

I am using Postfix to replace an existing email system, and I am inheriting usernames that are in uppercase. Apparently Postfix converts all email addresses to lowercase, so I cannot receive mail to the accounts that are in uppercase. This surprised me, because the linux user accounts are in upper