Re: Using header_checks to file mail into junk folder
On 31 Dec 2020, at 12:36, Matus UHLAR - fantomas wrote:
> On 31.12.20 13:52, Kris Deugau wrote:
>> I'm curious why; on-delivery message sorting like this is pretty much what
>> sieve is *for*...
>
> either is fine until incompetent users start creating rules they don't
> understand and then complain...
Don't give users access to the top-level rules.
dovecot.conf:
sieve_before = file:/usr/lib/dovecot/sieve/filespam.sieve
# cat /usr/lib/dovecot/sieve/filespam.sieve
require ["fileinto", "imap4flags"];
if header :contains "X-spam-flag" "YES" {
fileinto :flags "\Seen" "Junk";
}
> I remember user who configured mail to be delivered to /dev/null and
> complained about it being lost.
You can't fix stupid and if you can't let your users use sieve, you can still
use sieve.
--
I have seen the truth and it makes no sense.
Re: Using header_checks to file mail into junk folder
Christopher Walker wrote: I'm really hoping to get messages into a user's Junk folder without using IMAP sieve. procmail, maildrop... On 31.12.20 13:52, Kris Deugau wrote: I'm curious why; on-delivery message sorting like this is pretty much what sieve is *for*... either is fine until incompetent users start creating rules they don't understand and then complain... I remember user who configured mail to be delivered to /dev/null and complained about it being lost. user whose "spam" solution was to create rule for any spam sender, with thousands of records in filter file. the solution can be restricting what user can do in their rules. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Your mouse has moved. Windows NT will now restart for changes to take to take effect. [OK]
Re: Using header_checks to file mail into junk folder
Christopher Walker wrote: I'm really hoping to get messages into a user's Junk folder without using IMAP sieve. I'm curious why; on-delivery message sorting like this is pretty much what sieve is *for*... -kgd
Re: Using header_checks to file mail into junk folder
> Christopher Walker: > > Hi all, > > > > I'm trying to use milter_header_checks to file messages into users > > Junk folder but I'm having issues formatting the FILTER response in my > > header check file. > > > > I've added the following to my main.cf: > > 10025 inet n - n - - smtpd > > -o smtpd_tls_security_level=may > > -o smtpd_relay_restrictions=permit_mynetworks,reject > > -o inet_interfaces=loopback-only > > -o receive_override_options=no_header_body_checks > > -o > > local_recipient_maps=hash:/etc/postfix/virtual,ldap:/etc/postfix/virtual_junk.cf > > -o > > virtual_alias_maps=hash:/etc/postfix/virtual,ldap:/etc/postfix/virtual_junk.cf > > -o inet_interfaces=loopback-only > > > > My /etc/postfix/milter_header_checks file: > > /^X-Spam-Status:\s+Yes$/FILTER localhost:10025 > > You mean: smtp:localhost:10025. You have to specify a delivery > service (name in master.cf) before the destination (localhost:10025). > > > I'm using EFA project as an external mail filter. Whenever spam is > > encountered EFA adds 'X-Spam-Status: Yes' to the message header before > > Your configuration suggests something different: > > - The Milter adds 'X-Spam-Status: Yes' > > - The milter_header_checks sends mail with such a header over SMTP > to localhost:10025. > > Wietse Thank you very much, your suggestion worked and cleared my transport issue. We use EFA project (https://efa-project.org/) as an external mail gateway for our site. As mail passes through the gateway EFA will add the X-Spam-Status flag to every message. On the mail server, I'm trying to run two instances of Postfix with different settings for local_recipient_maps and virtual_alias_maps so I can (hopefully) manipulate where the messages are placed in IMAP. My /etc/postfix/virtual_junk.cf: server_host = ldap://10.3.24.162 server_port = 389 search_base = cn=Users,dc=ad,dc=domain,dc=com query_filter = (&(mail=%s)(objectClass=person)) result_attribute = msSFU30Name bind = yes bind_dn = cn=ldap,cn=Users,dc=ad,dc=domain,dc=com bind_pw = strong_password version = 3 start_tls = yes result_format = %s+j...@mail.domain.com Unfortunately, I'm now having a problem where external addresses are being mapped to IMAP accounts without the +Junk suffix. This results in spam messages winding up in the user's inbox (basically how it was working before). When does address mapping occur? I've changed the milter_header_checks to header_checks hoping to reroute the message before any address mapping occurs. I'm really hoping to get messages into a user's Junk folder without using IMAP sieve. Thanks, Chris -- PGP Fingerprint: 0x1A97C6259125882867EC8410FA1E7CD382BFC760
Re: Using header_checks to file mail into junk folder
Christopher Walker: > Hi all, > > I'm trying to use milter_header_checks to file messages into users > Junk folder but I'm having issues formatting the FILTER response in my > header check file. > > I've added the following to my main.cf: > 10025 inet n - n - - smtpd > -o smtpd_tls_security_level=may > -o smtpd_relay_restrictions=permit_mynetworks,reject > -o inet_interfaces=loopback-only > -o receive_override_options=no_header_body_checks > -o > local_recipient_maps=hash:/etc/postfix/virtual,ldap:/etc/postfix/virtual_junk.cf > -o > virtual_alias_maps=hash:/etc/postfix/virtual,ldap:/etc/postfix/virtual_junk.cf > -o inet_interfaces=loopback-only > > My /etc/postfix/milter_header_checks file: > /^X-Spam-Status:\s+Yes$/FILTER localhost:10025 You mean: smtp:localhost:10025. You have to specify a delivery service (name in master.cf) before the destination (localhost:10025). > I'm using EFA project as an external mail filter. Whenever spam is > encountered EFA adds 'X-Spam-Status: Yes' to the message header before Your configuration suggests something different: - The Milter adds 'X-Spam-Status: Yes' - The milter_header_checks sends mail with such a header over SMTP to localhost:10025. Wietse
Using header_checks to file mail into junk folder
Hi all, I'm trying to use milter_header_checks to file messages into users Junk folder but I'm having issues formatting the FILTER response in my header check file. I've added the following to my main.cf: 10025 inet n - n - - smtpd -o smtpd_tls_security_level=may -o smtpd_relay_restrictions=permit_mynetworks,reject -o inet_interfaces=loopback-only -o receive_override_options=no_header_body_checks -o local_recipient_maps=hash:/etc/postfix/virtual,ldap:/etc/postfix/virtual_junk.cf -o virtual_alias_maps=hash:/etc/postfix/virtual,ldap:/etc/postfix/virtual_junk.cf -o inet_interfaces=loopback-only My /etc/postfix/milter_header_checks file: /^X-Spam-Status:\s+Yes$/FILTER localhost:10025 I'm using EFA project as an external mail filter. Whenever spam is encountered EFA adds 'X-Spam-Status: Yes' to the message header before forwarding the message to my mail server for delivery. The idea was to route messages with the 'X-Spam-Status: Yes' header to another instance of Postfix listening on localhost:10025 which overrides the local_recipient_maps and virtual_alias_maps with the users Junk folder. I've read the header_checks man page and I'm still a bit confused as to what the FILTER response in my /etc/postfix/milter_header_checks file is supposed to look like. During testing my messages keep getting stuck in the queue with a 'status=deferred (mail transport unavailable)' error. Thanks, Chris
