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[02:55:16] <xibalba> I'm having a problem w/aliases that I figured would be pretty straight forward. I'm probably missing something basic i'm just not seeing.. I installed postfix onto an ubunt18 box, modified /etc/aliases, ran newaliases, postfix reload, and then i email the alias the email_to doesn't get rewritten to the address i put in /etc/aliases
[02:55:40] <xibalba> i'm sending to to=<rancid-switches at example dot com> and i'd like it to be rewritten to noc at example dot com
[02:56:28] <thumbs> xibalba: let's see what the /topic requests first.
[03:00:39] <xibalba> Here is my main.cf, aliases, and virtual: https://paste.ubuntu.com/p/5H5k4X2snb/ . Logs : https://paste.ubuntu.com/p/T6BsqzByJR/
[03:00:59] <rob0> um, that's not what /topic says
[03:01:03] <rob0> !showconfig
[03:01:04] <knoba> rob0: when asked to provide your config, please provide a SINGLE pastebin (see !pastebin) with postconf -nf and postconf -Mf. if your version is too old for those commands to work (< 2.9), you should upgrade, but see !showconfig_old
[03:01:15] <rob0> !relevant_logs
[03:01:15] <knoba> rob0: mail.* syslog Postfix log messages (NOT verbose, see !no_verbose) which show ONLY the entire handling of a single mail which illustrates the issue with which you want help. Random selections from your mail log are not adequate. IMAP/POP3 daemons and external delivery agents often log to the same syslog facility and should not be shown. Also see http://rob0.nodns4.us/postfix-logging
[03:02:01] <xibalba> !pastebin
[03:02:02] <knoba> xibalba: A pastebin site lets you easily share logs and configuration. Examples are dpaste.org, fpaste.org, pastebin.ca, paste.ee, ptpb.pw, ix.io and many others. Please avoid ad-supported sites such as pastebin.com if possible.
[03:02:41] <rob0> well, that does not appear to be local delivery, so alias_maps would not be consulted
[03:04:20] <xibalba> sorry, conf files. https://paste.ubuntu.com/p/ZzKbNntvSW/
[03:06:57] <thumbs> ok, that looks better
[03:08:37] <xibalba> i was expecting this command echo "foobar" | mailx -s "rancid switches `date -I`" rancid-switches at example dot com to end up going to noc at example dot com
[03:08:43] <xibalba> maybe my understanding is wrong
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[03:09:53] <rob0> alias_maps are only consulted for local(8) delivery,
[03:09:58] <rob0> !mydestination
[03:09:59] <knoba> rob0: a configuration parameter in the main.cf: The list of domains that Postfix delivers via the $local_transport mail delivery transport. By default, mail is given to the Postfix local(8) delivery agent that looks up all recipients in /etc/passwd and /etc/aliases, or their equivalents. See http://www.postfix.org/postconf.5.html#mydestination for more information.
[03:12:30] <xibalba> thank you, i got it working
[03:13:07] <xibalba> i realized my virtual_map was wrong. I had it as "rancid-switches noc at example dot com". Needed to have it as the full email for noth "rancid-switch at example dot com noc at example dot com"
[03:13:17] <xibalba> I appreciate your times
[03:13:30] <rob0> !append_at_myorigin
[03:13:30] <knoba> rob0: Append the string"@$myorigin" to mail addresses without domain information. WARNING: do not change this without understanding what it means, see http://www.postfix.org/postconf.5.html#append_at_myorigin
[03:13:46] <rob0> also,
[03:13:52] <rob0> !virtual_maps
[03:13:52] <knoba> rob0: The virtual_maps postconf(5) parameter has been deprecated since Postfix 2.0. If you're using virtual_maps, you're probably following old, outdated information. See !virtual_alias_maps and !virtual_alias_domains for the replacements. See also !google.
[03:14:35] <xibalba> ah copied the wrong portion of the config from the page you linked me to, virtual_alias_maps (default: $virtual_maps)
[03:15:17] <rob0> "default: $virtual_maps" is for backward compatibility
[03:15:38] <rob0> also,
[03:15:43] <rob0> !nullclient
[03:15:43] <knoba> rob0: a null client is a computer that can only send mail. it receives no mail from the network, and it does not deliver any mail locally. while postfix can be configured to fill this role, it is often unnecessary overkill, and a much simpler software package is more appropriate. see !nullclient_software for more details.
[03:15:50] <rob0> !nullclient_software
[03:15:50] <knoba> rob0: a program that serves as a drop in replacement for /usr/sbin/sendmail and provides a simple means to submit messages to an existing msa without the need to install and maintain a full-blown mta/msa. examples include msmtp, esmtp, ssmtp and nullmailer. also see !msa
[03:17:40] <rob0> Since it seems that your only use of this Postfix is to relay system and crond mail out, you might be better off with a simpler software.
[03:19:06] <xibalba> good point. i'll have to look for a good option on ubuntu18
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[05:37:23] <CygniX> given rfc8314, would it be wise to set 'smtp_tls_security_level = encrypt' or leave it at 'may' ?
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[05:40:56] <kintarowonders> I am wondering how a certain IP could bypass SPF/DKIM/DMARC if mails came from it.
[05:41:11] <kintarowonders> Basically all milters
[05:54:20] <lunaphyte> CygniX: as indicated in the rfc title, 8314 applies to submission [or submissions]
[05:54:35] <lunaphyte> it does not apply to mail exchange
[05:56:38] <CygniX> lunaphyte: thanks for the clarification
[05:57:00] <lunaphyte> sure thing
[05:57:06] <lunaphyte> !tell kintarowonders getting_help
[05:57:06] <knoba> kintarowonders: before asking your question, read the !relevant_logs and !showconfig factoids, and prepare a single pastebin containing all of that data. if you don't understand what this means, or if you need help doing this, please let us know. also see !pastebin
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[11:26:38] <]SiB[> !welcome
[11:26:38] <knoba> ]SiB[: Welcome to #postfix! If you're new here, or to IRC, first read the channel topic (/topic). It has important instructions on how to ask good questions. You will get more and better help if you follow those instructions. Good Luck!
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[11:31:08] <sysmox> hi there, does someone know why exactly some headers have Authentication-Results: mx.example.com;
[11:31:10] <sysmox> none
[11:33:24] <sysmox> hi there, does someone know why some headers have Authentication-Results: mx.example.com none , but then looking at the postix logs, the result is pass in the opendmarc and opendkim entries for the same email?
[11:34:15] <sysmox> sorry, scrolling problem, I didn't see I sent the first message. Apologies.
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[13:09:07] <skylite> I'm trying to setup my postmaster alias but I'm not sure if it works. Is there any quick test I can do to figure it out if it's working or not?
[13:09:36] <lxsinfo> what OS ?
[13:10:16] <Zerberus> skylite: send a message to the postmaster and check your mail log
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[13:11:31] <skylite> Zerberus: like mail -s "Test Subject" postmaster < /dev/null ?
[13:12:06] <Zerberus> skylite: always use fully qualified addresses, but yes, like that if you want to
[13:12:07] <skylite> its not working but I have the email defined in the aliases file like: postmaster: skylite at skylite dot hu
[13:12:28] <Zerberus> rebuild the .db?
[13:12:45] <skylite> I already did newaliases
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[13:13:03] <Zerberus> !tell skylite showconfig
[13:13:03] <knoba> skylite: when asked to provide your config, please provide a SINGLE pastebin (see !pastebin) with postconf -nf and postconf -Mf. if your version is too old for those commands to work (< 2.9), you should upgrade, but see !showconfig_old
[13:13:37] <Zerberus> and log content would be useful too
[13:14:42] <skylite> oh log damn.. I can see it's trying to send to postmaster at mail dot skylite.hu
[13:15:05] <skylite> but why? I added the exact email in the aliases file
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[13:17:53] <skylite> Zerberus:https://pastebin.com/VTWKC1Nv
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[13:18:06] <lxsinfo> did you run newaliases?
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[13:18:10] <skylite> of course
[13:18:16] <skylite> even restarted postfix
[13:19:36] <Zerberus> as I said: don't send messages to unqualified recipients
[13:19:45] <Zerberus> to=<postmaster at mail dot skylite.hu>, orig_to=<postmaster>,
[13:19:53] <Zerberus> the translation is done by your postfix
[13:20:16] <Zerberus> probably because of myorigin = /etc/mailname
[13:21:25] <Zerberus> and what aliases database did you adjust? probably /etc/aliases?
[13:22:27] <[c0deman]> !showconfig
[13:22:27] <knoba> [c0deman]: when asked to provide your config, please provide a SINGLE pastebin (see !pastebin) with postconf -nf and postconf -Mf. if your version is too old for those commands to work (< 2.9), you should upgrade, but see !showconfig_old
[13:23:22] <Zerberus> skylite did so perfectly fine
[13:23:32] <[c0deman]> !relevant_logs
[13:23:32] <knoba> [c0deman]: mail.* syslog Postfix log messages (NOT verbose, see !no_verbose) which show ONLY the entire handling of a single mail which illustrates the issue with which you want help. Random selections from your mail log are not adequate. IMAP/POP3 daemons and external delivery agents often log to the same syslog facility and should not be shown. Also see http://rob0.nodns4.us/postfix-logging
[13:24:36] <skylite> logs are also included in the pastebin
[13:25:31] <skylite> Zerberus: yes I edited only /etc/aliases it looks like this: https://pastebin.com/dLghypiQ
[13:26:23] <Zerberus> skylite: that aliases is for local(8) and mail.skylite.hu is not defined in mydestination
[13:26:54] <Zerberus> send to postmaster@localhost it will work
[13:27:24] <[c0deman]> Hello, I'm trying to setup postfwd (and postfwd-anti-geoip-spam-plugin) with postfix. Looks like postfwd is working fine, postfwd gets executed (it is listed in smtpd_recipient_restrictions), but it only gets executed for non-sasl users. With sasl users, postfwd gets bypassed. Anybody knows where to debug or to start?
[13:28:20] <skylite> Zerberus:works thanks!!
[13:28:58] <Zerberus> codeman: follow the factoids you just checked
[13:32:06] <[c0deman]> hm, i've put postfwd in debugging, i see debug logging but with a sasl login, nothing pops up
[13:32:39] <Zerberus> no help without following the factoids
[13:33:15] <[c0deman]> Logs : https://pastebin.com/VVL8qL1e
[13:33:20] <[c0deman]> Config i mean, sorry
[13:33:24] <Zerberus> SMTP AUTH should not go over SMTP port 25, that's for message exchange only
[13:33:30] <Zerberus> !submission
[13:33:30] <knoba> Zerberus: Port 587 is submission, for user submission of mail, NOT suitable for mail exchange. See the commented example in master.cf. also see !msa, and rfc 6409. Also read http://www.maawg.org/sites/maawg/files/news/MAAWG_Port25rec0511.pdf
[13:34:25] <tuxick> i've done submission/starttls on 25 for some broken client
[13:34:45] <[c0deman]> !no_verbose
[13:34:45] <knoba> [c0deman]: do not show verbose logs unless someone asks you to. if someone does ask you to, see !verbose
[13:35:06] <tuxick> normal logs are quite verbose already :)
[13:37:31] <Zerberus> [c0deman]: add your policy service into submission as well for that SASL clients
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[13:44:32] <[c0deman]> Zeberus: Aha, that makes sense! So I should also put it in master.cf ? is the syntax different there ? It doesn't seem to accept the parameter there (unexpected command-line argument: inet:127.0.0.1:10040)
[13:45:22] <Zerberus> yes, syntax is different
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[13:48:15] <[c0deman]> Got it, I have to use a comma
[13:50:10] <[c0deman]> Thanks!
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[14:25:09] <tuxick> but the crux of the biscuit is the apostrophe
[14:28:55] <survietamine> also, consider:
[14:28:59] <survietamine> !submissions
[14:28:59] <knoba> survietamine: RFC 8314 renames the old smtps port, 465/tcp, to submissions, for user submission of mail, NOT suitable for mail exchange, with implicit TLS rather than explicit STARTTLS via a plaintext TCP connection. Postfix can implement submissions with a separate smtpd(8) listener with -o smtpd_tls_wrappermode=yes . See the commented example for smtps in master.cf.
[14:29:17] <survietamine> and nowadays, dovecot can handle submission service too
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[14:48:14] <liKe2k1> How can I rewrite the TO adress from a specific host? For example: I have a test system which sends mails via a postfix relay server, on this system I want to rewrite the TO Address to a dedicated test mail account. Any hints how to solve this?
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[14:51:09] <lunaphyte> !tell liKe2k1 blackhole
[14:51:09] <knoba> liKe2k1: http://archives.neohapsis.com/archives/postfix/2010-04/0168.html
[14:52:47] <liKe2k1> Blackhole is a /dev/null mailbox?
[15:01:42] <wCPO> Is there any particular reason why Postfix message_size_limit default to 10240000 and not: 10000000 or 10485760 (10MiB)?
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[15:05:03] <f3ew> No, it was just a suitable default
[15:06:53] <liKe2k1> Thanks! Got it working
[15:15:07] <wCPO> f3ew: Thanks, 1000 vs 1024 always confuse me. 50MB must be 50000000 bytes these days.
[15:15:31] <survietamine> lunaphyte: I cannot open that site/page
[15:15:42] <tuxick> horribly confusing indeed
[15:18:48] <buki> also base64 encoding, so...
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[15:40:42] <micah> i've got a PCRE check_sender_access file, and I'm under the impression that I need to escape some characters, but I'm not sure which ones. for example if I want to add "foo-bar at example dot com", I know I need to do something like: /foo\-bar\ at example\ dot com/ HOLD
[15:41:07] <micah> do I need to escape the - and the @? I am pretty sure I need to do the .
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[15:41:57] <lunaphyte> micah: that would be a good question for #regexp
[15:44:29] <micah> i'll try
[15:44:44] <f3ew> No, and no
[15:45:18] <f3ew> But man pcre is also your friend micah
[15:46:56] <micah> f3ew: well, the thing is, the man page says that in Perl the @ cause variable interpolation
[15:47:13] <lunaphyte> yes, @ needs to be escaped
[15:47:16] <micah> and its not clear to me if the P in PCRE means "Perl" format, or not
[15:47:26] <lunaphyte> but this is why this would be best in an appropriate channel
[15:47:40] <lunaphyte> rather than here in #postfix, since the actual question has nothing at all to do with postfix
[15:48:43] <micah> well, "nothing at all" is not really true, but I see your point
[15:48:53] <lunaphyte> it is true
[15:49:03] <lunaphyte> you're asking how pcre works
[15:49:17] <lunaphyte> the way in which is works is not specific to postfix
[15:49:21] <lunaphyte> *it works
[15:51:13] <micah> well, its a question that comes from how postfix treats PCRE. i'm asking how it works with postfix, does postfix implement PCRE like Perl does, or not? What happens in postfix if I escape something that doesn't need to be escaped (eg. the -)
[15:51:28] <micah> you wouldn't say that all questions related to postfix belong in #binary
[15:51:29] <micah> ;)
[15:51:45] <lunaphyte> postfix uses the pcre library
[15:51:51] <lunaphyte> it doesn't do anything any certain way
[15:51:53] <micah> great, that answers a lot
[15:58:51] <tuxick> afaik 'pcre' means 'pcre'
[15:59:05] <tuxick> not 'any re'
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[16:28:57] <f3ew> FSVO Perl Compatible
[16:32:25] <rob0> micah might need to anchor the ^ and $, else the expression would match pity-da-foo-bar at example dot com or foo-bar at example dot communist.org
[16:32:58] <micah> rob0: good point
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[16:34:52] <rob0> The main reason to use pcre as check_sender_access is when you need to match varied patterns. If you really are only matching one sender address, or a number of complete addresses, you want hash.
[16:35:59] <rob0> (also the if/endif construct can be used for conditional evaluation. But otherwise hash is better in several ways.)
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[16:50:45] <micah> rob0: presumably speed is the main advantage?
[16:52:54] <rob0> speed not really, but it doesn't load the whole thing into memory, and updates are detected automagically (smtpd watches the timestamp of the file.db)
[16:54:14] <rob0> pcre requires a reload, or if you don't, it won't take effect until all active smtpd processes reach their end. (By default 10 minutes.)
[16:55:08] <rob0> (It takes effect with each new smtpd, reading the pcre file into memory. But there is no checking for changes later.)
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[18:19:54] <micah> rob0: doesn't hash require a postmap and reload too?
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[18:20:39] <rob0> postmap, no reload
[18:20:57] <rob0> smtpd watches the timestamp of the file.db
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[18:34:59] <micah> rob0: yeah, with hash you need to remember to run postmap, with pcre you need to remember to reload... but if you forget, pcre will still load it later, but a missing hash will not
[18:37:45] <rob0> I don't have the problem of forgetting postmap, but if I did, I'd probably do a simple script wrapper that edits and then postmaps a file.
[18:38:03] <rob0> reload can be disruptive
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[23:40:56] <xpoint> life is a bitch
[23:48:54] <Netwolf> why
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   September 11, 2019  
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