[pfx] Re: Questions for the third party plugins

On 2023-04-21 16:05, Matus UHLAR - fantomas via Postfix-users wrote: On 21.04.23 12:08, tom--- via Postfix-users wrote: do policyd-service (such as rate-limit) and milter (such as opendkim) use the same communication way to postfix? policy services use the policy protocol:

[pfx] forwarding questions

Hello list, I have a local real mailbox: u...@foo.com When I setup this alias map in virtual_alias_maps file: u...@foo.com u...@gmail.com (then postmap this file). The message sent to u...@foo.com won't reach into mailbox, but just forwarded to gmail. How can I setup it to both reach local

[pfx] Re: forwarding questions

On 2023-04-28 10:21, Viktor Dukhovni via Postfix-users wrote: On Fri, Apr 28, 2023 at 08:32:29AM +0800, Tom Reed via Postfix-users wrote: I have a local real mailbox: u...@foo.com. When I setup this alias map in virtual_alias_maps file: u...@foo.com u...@gmail.com (then postmap

[pfx] Help with spamhaus listing

Dear lists, I in fact use rarely this mailbox: t...@dkinbox.com But today I found both my domain "dkinbox.com" and the mailserver IP: 38.45.66.54 are listed into spamhaus "css" and "dbl" blacklists. My mailserver has the correct rDNS/MX/SPF/DKIM/SMARC setup (checking from mail-tester.com).

[pfx] where setup permit_mx_backup

Greeting list, besides relay_domains, I can use permit_mx_backup to setup a secondary MX server. I have these setup in main.cf: smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, permit_mx_backup, reject_unauth_destination smtpd_recipient_restrictions =

[pfx] MX load balancing

Hello If I set up backup MX just the same weight as primary MX, can the two MX servers work as load balancer for incoming emails? Thank you. -- Sent from https://dkinbox.com/ ___ Postfix-users mailing list -- postfix-users@postfix.org To

[pfx] Re: MX load balancing

> Tom Reed via Postfix-users: >> >> Hello >> >> If I set up backup MX just the same weight as primary MX, can the two MX >> servers work as load balancer for incoming emails? > > The backup MX will need a transport map to route mail to the primar

[pfx] Re: MX load balancing

> On Tue, May 30, 2023 at 07:18:01PM +0800, Tom Reed via Postfix-users > wrote: > >> If I set up backup MX just the same weight as primary MX, can the two MX >> servers work as load balancer for incoming emails? > > Will both then relay the mail to some other

[pfx] Re: delivery loop?

Thank you Victor, you are the embodiment of truth. > On Mon, May 22, 2023 at 08:26:19PM +0800, Tom Reed via Postfix-users > wrote: > >> 1. postfix is a backup MX for foo.com >> 2. this postfix uses other MTA as relay_host > > This would be a misconfigurat

[pfx] Re: delivery number question

> On Thu, May 18, 2023 at 07:48:32PM +0800, Tom Reed via Postfix-users > wrote: > >> If a sender write a message which has N recipients in the same >> destination domain (say gmx.de), when postfix deliver this message to >> peer MTA, will it deliver one copy, or

[pfx] Re: relayhost and backup MX

> On 21.05.23 15:53, Tom Reed via Postfix-users wrote: >>My postfix has setup another MTA for relay host, >> >>relayhost = [relay_ip] >> >>If I setup this postfix as backup mx for a domain, such as foo.com. >>will messages for foo.com relay from relay_ip

[pfx] relayhost and backup MX

Hello list, My postfix has setup another MTA for relay host, relayhost = [relay_ip] If I setup this postfix as backup mx for a domain, such as foo.com. will messages for foo.com relay from relay_ip too, or go directly to the primary MX? Thanks in advance. -- sent from https://dkinbox.com/

[pfx] wildcast for virtual domains

Hello list, sorry for the silly question. does virtual domains (such as virtual_alias_domains) support wildcast? such as putting this one in the file: *.foo.com so that one.foo.com, two.foo.com... will be a recipient domain. Thanks. -- sent from https://dkinbox.com/

[pfx] Re: delivery loop?

> > PS: Why do you (think you) need a backup MX? Hello I am not sure why I need a backup mx indeed, but if you make a simple dig, you find gmail, fastmail, protonmail, comcast, free.fr those big providers do have backup MXs. Though yahoo, outlook don't have backup MX as a comparison.

[pfx] delivery loop?

Hello list, Given the case that: 1. postfix is a backup MX for foo.com 2. this postfix uses other MTA as relay_host When the primary MX for foo.com is down, messages to u...@foo.com will be delivered into backup MX. And, backup MX delivers the message to relay_host, which find that primary MX

[pfx] postfix ports questions

Hello my postfix has SSL certificates deployed. Can I setup only port 25 open to the world? If port 465/587 are filtered by iptables which only permit internal users to connect, does this make sense to external MTAs (such as google, MS's)? Thanks. Tom

[pfx] Re: how to implement plus address

> Depending on your setup something of this might be relevant: > > > >

[pfx] Re: how to implement plus address

>> Put the following in /etc/postfix/main.cf: >> >> recipient_delimiter = + >> >> cheers, >> raf > > > Just FYI; > > If you are using dovecot and postfix is handing off delivery to dovecot > (such as LMTP) you also need to make sure that setting is in the dovecot > config or dovecot will

[pfx] Re: how to implement plus address

> On Fri, May 12, 2023 at 07:09:41PM +0800, Tom Reed via Postfix-users > wrote: > >> Hello >> >> How can I implement the following feature? >> the messages sent to: >> >> foo+la...@sample.com >> foo+lab...@sample.com >> ... >> >

[pfx] Re: postfix ports questions

> On Sat, May 13, 2023 at 06:51:30PM +0800, Tom Reed via Postfix-users > wrote: > >> Can I setup only port 25 open to the world? If port 465/587 are filtered >> by iptables which only permit internal users to connect, does this make >> sense to external MTAs (such a

[pfx] Conclusion about plus address setup

Hello Just FYI, After simple putting this line into postfix's main.cf: recipient_delimiter = + And reload postfix, the plus alias address should work. I am using dovecot LMTP as delivery agent. Nothing changes to dovecot configuration. Here are the versions: Postfix 3.6.4 Dovecot 2.3.16

[pfx] Postsrsd question

Hello list, for Postsrsd, it rewrite all the sender addresses even if messages should be delivered locally. how to setup it to not rewrite sender for local addresses? Thanks -- sent from https://dkinbox.com/ ___ Postfix-users mailing list --

[pfx] Re: said: 550 Mail was identified as spam

> > > https://www.mail-archive.com/postfix-users@postfix.org/msg99175.html [1] > > > This question has been consulted a few days ago, thanks to the team for > the reply > > We have provided more detailed logs this time > > SMTP server og: > > May 16 08:41:14 smtp3 postfix-sen/qmgr[27776]:

[pfx] Re: said: 550 Mail was identified as spam

> > > Relay server configuration is very simple. > > debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5 > header_checks = regexp:/etc/postfix/header_checks I am not sure, but have you checked the configuration above?

[pfx] DKIM and DMARC

Hello list, Should we reject failed message on DKIM validation stage, or DMARC validation stage, or both? Thanks. -- sent from https://dkinbox.com/ ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to

[pfx] Re: DKIM and DMARC

> > On 16/05/2023 13:16, Tom Reed via Postfix-users wrote: >> Hello list, >> >> Should we reject failed message on DKIM validation stage, or DMARC >> validation stage, or both? > > Just my opinion... > > I see lots (and I mean lots) of DKIM fai

[pfx] Re: DKIM and DMARC

-16 at 08:16:21 UTC-0400 (Tue, 16 May 2023 20:16:21 +0800) > Tom Reed via Postfix-users > is rumored to have said: > >> Hello list, >> >> Should we reject failed message on DKIM validation stage, or DMARC >> validation stage, or both? > > Generally, neither

[pfx] A strange DMARC failure

Greeting members, I found that, after I enable opendmarc to reject messages, there are some issues for list addresses. for example, this rejected message shows: : host mx1.dkinbox.com[193.106.250.86] said: 550 5.7.1 rejected by DMARC policy for radlogic.com.au (in reply to end of DATA

[pfx] Re: A strange DMARC failure

> On Tue, May 16, 2023 at 10:15:35PM -0400, Bill Cole via Postfix-users > wrote: > >> On 2023-05-16 at 21:09:35 UTC-0400 (Wed, 17 May 2023 09:09:35 +0800) >> Tom Reed via Postfix-users >> is rumored to have said: >> [...] >> > Since the message was se

[pfx] Re: DKIM and DMARC

> SPF is designed for validating envelope from: and should not be used for > header From: > > Microsoft attempt to create SPF/2 has failed and should not be used > either. > That's OK. thanks for the info. -- sent from https://dkinbox.com/ ___

[pfx] Re: [ext] Re: DKIM and DMARC

> On 16.05.23 16:38, Benny Pedersen via Postfix-users wrote: >>dmarc does not imho use ARC results yet :/ > > You must configure trusted ARC signers. > You can't blindly trust ARC just like you can't blindly trust SPF > May I ask what policyd or milter you use for SPF checks? -- sent from

[pfx] how to implement plus address

Hello How can I implement the following feature? the messages sent to: foo+la...@sample.com foo+lab...@sample.com ... all them will be delivered into: f...@sample.com Thanks. Tom ___ Postfix-users mailing list -- postfix-users@postfix.org To

[pfx] Re: question: "said: 550 Mail was identified as spam"

> Hi lty, > On Fri, May 12, 2023 at 03:32:45PM +0800, lty--- via Postfix-users wrote: >> (...) >> We are using postfix 2.11 version. > > Really? My postfix version are: > yw-0919: Postfix 3.3.0 / Ubuntu 18.04 LTS > yw-1204: Postfix 3.5.18 / Debian 11 Bullseye > > And yw-1204 have OpenDKIM 2.11 as

[pfx] delivery number question

Hello, If a sender write a message which has N recipients in the same destination domain (say gmx.de), when postfix deliver this message to peer MTA, will it deliver one copy, or N copies? Thanks. -- sent from https://dkinbox.com/ ___

[pfx] postfix delimiter question

Hello, multiple items for a given directive, "," or space or "," + space all are valid delimiters. Am I right? Such as the following. smtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated,defer_unauth_destination smtpd_relay_restrictions = permit_mynetworks