Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi guys. I'm still looking for the right solution... As I said before, I was thinking to put in a cronjob the command postsuper -h ALL, but in that case I'll put in hold also the emails that are in queue because maybe there was an error during the delivery. Suggestions? Thanks Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
On Wed, Feb 24, 2010 at 04:16:56PM +, Michele Carandente wrote: Hi guys. I'm still looking for the right solution... As I said before, I was thinking to put in a cronjob the command postsuper -h ALL, but in that case I'll put in hold also the emails that are in queue because maybe there was an error during the delivery. This is a bad idea. If you want to hold mail for certain recipients, deliver it to a Postfix instance that HOLDs all mail. If you want to HOLD certain messages based on sender or content, apply the right access(5), header_checks(5) or body_checks(5) rules. -- Viktor. P.S. Morgan Stanley is looking for a New York City based, Senior Unix system/email administrator to architect and sustain our perimeter email environment. If you are interested, please drop me a note.
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi Victor. Thanks for your reply. My problem is that I want to put all the emails in HOLD, apart the local one. As I said before, my installation is not exatly a standard one... I recognize local emails with: transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf where a database say me 'virtual' if the email is local, ':' otherwise. So I don't know how to say to postfix which email will not be HOLD... I'm quite lost at the moment... can you put me in the right way? Thanks Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi Victor,
I agree that the cron job solution is not the best one... but at the
moment it is the only one that I'm able to offer...
(Even if with a cron job every 5 seconds(for example), I'll not lose
any emails...)
As Noel Jones said before: The documented way to tell postfix to
accept mail for a domain is to put the domain in one of
{mydestination, relay_domains, virtual_alias_domains,
virtual_mailbox_domains}. See below for some documentation links. I
don't see transport_maps listed there.
So, with my configuration, if you can suggest me a possible and better
solution I'll really appreciate it.
Thanks a lot
Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
On Wed, Feb 10, 2010 at 09:22:41AM +, Michele Carandente wrote:
I agree that the cron job solution is not the best one... but at the
moment it is the only one that I'm able to offer...
(Even if with a cron job every 5 seconds(for example), I'll not lose
any emails...)
As Noel Jones said before: The documented way to tell postfix to
accept mail for a domain is to put the domain in one of
{mydestination, relay_domains, virtual_alias_domains,
virtual_mailbox_domains}. See below for some documentation links. I
don't see transport_maps listed there.
So, with my configuration, if you can suggest me a possible and better
solution I'll really appreciate it.
To put an entire message on HOLD, use access(5) or header_checks(5)
or body_checks(5). To put some recipients on hold requires forwarding
of the held recipients into a downstream Postfix queue which holds
complete messages. HOLD a message action, not a recipient action.
--
Viktor.
P.S. Morgan Stanley is looking for a New York City based, Senior Unix
system/email administrator to architect and sustain our perimeter email
environment. If you are interested, please drop me a note.
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi Noel, thanks for your reply. I know that unfortunately it's not a standard configuration of Postfix, but it's the only one that solve all my problem... Anyway I will not upgrade postfix for at least the next 2 years... I'll try again to find a way to put emails in HOLD automatically...otherwise I'll add a cronjob with the command: 'postsuper -h ALL' Cheers Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
On Tue, Feb 09, 2010 at 09:44:16AM +, Michele Carandente wrote: I'll try again to find a way to put emails in HOLD automatically...otherwise I'll add a cronjob with the command: 'postsuper -h ALL' The cron job will be completely ineffective. It will miss all mail that is delivered between command invocations. This would be a terrible design. Postfix can put email on HOLD via access(5) checks, header/body checks or milter quarantine actions. Plenty of rope. -- Viktor. P.S. Morgan Stanley is looking for a New York City based, Senior Unix system/email administrator to architect and sustain our perimeter email environment. If you are interested, please drop me a note.
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi, sorry if I write again, but I've found how to queue directly in HOLD. Basically the option is: smtpd_sender_restrictions = static:HOLD But in this way all the emails will be queued, even the internal one... There is a way to queue just the emails that will be relayed externally? Googling a bit I found that should be something like: smtpd_sender_restrictions = permit_auth_destination static:hold but it's not working for me... In my configuration I'm matching the internal addresses in transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf Thanks Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Michele Carandente: Hi, sorry if I write again, but I've found how to queue directly in HOLD. Basically the option is: smtpd_sender_restrictions = static:HOLD But in this way all the emails will be queued, even the internal one... There is a way to queue just the emails that will be relayed externally? Googling a bit I found that should be something like: smtpd_sender_restrictions = permit_auth_destination static:hold but it's not working for me... It works exactly as documented: permit the request when the RECIPIENT is internal; otherwise, hold the message. These, and other features, are painstakingly documented in, for example, http://www.postfix.org/postconf.5.html In particular, client features are documented unter http://www.postfix.org/postconf.5.html#smtpd_client_restrictions Sender features are documented under http://www.postfix.org/postconf.5.html#smtpd_sender_restrictions See also: http://www.postfix.org/SMTPD_ACCESS_README.html Wietse
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi Wietse, I had a look at the links that you've suggested me. If I've understand correctly, I don't have to use the 'smtpd_sender_restrictions' option, because I have to match the receiver and, if it's in transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf, then means that it's internal and don't need to be in queue. So I guess I need to use the option 'smtpd_recipient_restrictions' At the moment it is that option: smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination So now I think I've to modify it, so that I'll tell that if the receiver is matching with an address of transport_maps (Internal email), then nothing, otherwhise put all the emails in HOLD. This is the theory. But pratically how the smtpd_recipient_restrictions should look like? Thanks Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Michele Carandente: Hi Wietse, I had a look at the links that you've suggested me. If I've understand correctly, I don't have to use the 'smtpd_sender_restrictions' option, because I have to match the receiver and, if it's in transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf, then means that it's internal and don't need to be in queue. So I guess I need to use the option 'smtpd_recipient_restrictions' At the moment it is that option: smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination So now I think I've to modify it, so that I'll tell that if the receiver is matching with an address of transport_maps (Internal email), then nothing, otherwhise put all the emails in HOLD. This is the theory. But pratically how the smtpd_recipient_restrictions should look like? What problem are you trying to solve: hold mail only from non-local clients? then use smtpd_client_restrictions = permit_mynetworks static:hold Something else? This would be a good time to describe what you actually want, instead of what does not work. Wietse
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
Hi Wietse, first of all thaks for your reply. The problem is exatly what you said before: hold mail only from non-local clients. I tried as you said with smtpd_client_restrictions = permit_mynetworks static:hold (actually was like that: smtpd_recipient_restrictions = permit_mynetworks static:HOLD, permit_sasl_authenticated, reject_unauth_destination) but it''s putting everithing in HOLD. Basically my configuration is not a real standard one. I've this mailserver that must queue all external email and, when I want, relay them to different domains (depending of the sender). To say to postfix which email is internal, instead of use virtual_mailbox_domains, that will consider all the emails part of that domain as internal, I'm using transport_maps = proxy:mysql:/etc/postfix/mysql-virtual_transports.cf, where is pointing to a column of the mail_users database. That column will have as value 'virtual', so postfix will know if the receiver is internal or not. I hope now my configuration is more understandble. Thanks Michele
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
On 2/8/2010 9:23 AM, Michele Carandente wrote:
Hi Wietse,
first of all thaks for your reply.
The problem is exatly what you said before: hold mail only from
non-local clients.
I tried as you said with smtpd_client_restrictions = permit_mynetworks
static:hold (actually was like that: smtpd_recipient_restrictions =
permit_mynetworks static:HOLD, permit_sasl_authenticated,
reject_unauth_destination) but it''s putting everithing in HOLD.
Basically my configuration is not a real standard one.
I've this mailserver that must queue all external email and, when I
want, relay them to different domains (depending of the sender).
To say to postfix which email is internal, instead of use
virtual_mailbox_domains, that will consider all the emails part of
that domain as internal, I'm using transport_maps =
proxy:mysql:/etc/postfix/mysql-virtual_transports.cf, where is
pointing to a column of the mail_users database. That column will have
as value 'virtual', so postfix will know if the receiver is internal
or not.
The documented way to tell postfix to accept mail for a domain
is to put the domain in one of {mydestination, relay_domains,
virtual_alias_domains, virtual_mailbox_domains}. See below
for some documentation links. I don't see transport_maps
listed there.
When you don't use the documented interface, you're on your
own. While it may be possible to do what you ask with your
current configuration, the standard tools and standard answers
won't work. Be aware future postfix upgrades may break your
non-documented configuration.
Good luck.
http://www.postfix.org/BASIC_CONFIGURATION_README.html
http://www.postfix.org/SOHO_README.html
http://www.postfix.org/STANDARD_CONFIGURATION_README.html
http://www.postfix.org/VIRTUAL_README.html
http://www.postfix.org/ADDRESS_CLASS_README.html
-- Noel Jones
Re: How to setup postfix to put the queued emails in hold (and not in deferred)
On 4 February 2010 20:40, Michele Carandente carande...@gmail.com wrote: Hi to everybody. I've setup postfix to queue all the outgoing emails. Basically I've add in master.cf this line: hold unix - - n - - smtp And in main.cf I've wrote: defer_transports = hold default_transport = hold Your hold service is just a duplicate of the regular smtp service. You might as well have left default_transport alone, and set defer_transports=smtp The problem is that the queued emails will be in deferred queue, and I've to manually put in hold queue with the command 'postsuper -h ALL'. There is a way to put queued email directly in hold queue? There's more than one way to do this. Googling for postfix hold all mail turns up various MailScanner guides and some archives from this list. While MailScanner is somewhat frowned upon here, it'll help you get the idea: http://wiki.linuxquestions.org/wiki/Using_MailScanner/Postfix/SpamAssassin/ClamAV_in_Gentoo_Linux grep for hold all incoming messages An old list posting that uses a second instance (not necessary here): http://irbs.net/internet/postfix/0606/1285.html The key is smtpd_data_restrictions = static:HOLD I've only done this once before, to punish a customer. I can't seem to find that config now, so you'll need to read a bit to make some sense of it. What you're wanting to do should be fairly clean and simple to do.
