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Comments:
<0> hey all, got a question for you
<0> my stupid former employer has a stupid web app which sends 'test transaction' e-mails to test@example.com
<0> what's the best way to blackhole this account?
<0> I was thinking of adding a new disabled virtual user
<0> but that would require some reconfiguration
<0> a better solution would be to drop messages that can't be delivered within a certain timeout, which Postfix doesn't seem to be doing
<1> test@ discard
<1> in check_recipient_access
<0> how do I turn a textfile into a hash file?
<2> postmap does that for example for the transport file...don't know for what else
<0> ok
<0> metalfan: that worked, thanks :)
<0> I'm of the firm opinion that their stupid script should check an e-mail address's MX records to see if it exists, and if not, reject the user's address
<0> or rather, do a confirmation
<0> 'The e-mail address <icanttype@yaho.com> appears to be invalid. If you are certain that this address is correct, you may proceed. If not, please correct it.'
<3> hi
<4> hi all
<4> i'm currently using postfix with amavisd-new for spam/virus filtering
<4> the filtering is performed using a content_filter command in the main.cf
<4> for the users that are authenticating with sasl to the server i want to byp*** the amavisd-new software completely
<4> how do i do this?
<1> have them auth to port 587
<1> and have the smtpd listener on 587 get a -o content_filter=
<1> there is also the smtpd_sasl_authenticated_header in 2.3
<4> tell me more about this header?
<4> okay so if i set the header, i need to then create a filter cl*** that checks for it and then either checks or not
<4> something like that?
<5> this is a lame question, but what is Dovecot? Postfix is a MTA, Thunderbird is an MUA, what is the accronym for an IMAP/POP3 server?
<5> MDA?
<5> Mail Delivery Agent?
<6> no
<6> mail access server / mail storage server
<5> humm. Then what would an example of a MDA be?
<5> Maildrop?
<6> procmail, maildrop
<5> ahh, ok.
<7> hello, how can I tell postfix to use a different @mailhost.org for specific users?
<5> virtual alias maps?
<7> from what I can read they are for recieving mail but not sending?
<3> for sending with another mail-address, you just have to modify the 'From:' field in your mail-header
<7> dennis so i should be looking in Mutt f.x. to change this?
<3> yes
<7> ok thanks
<3> np
<8> hi all. i have some local domains, working fine, but now i need some more local domains for mailman, those need to be local too because aliases that pipe to the mailman executables are used, but i dont want the aliases of both sets of domains to be "merged". any hints?
<8> hmz, found a trick to use vurtual instead
<8> never mind
<9> does anyone know how to byp*** filename attachment blocking with messages from a specific domain?
<9> via amavisd
<9> such as, i don't want messages coming from foo.com to be blocked if they have .exe attachments
<10> Zaw: ask for then to compress the file... 2 wins: it can be executed by mistake, its smaller
<9> higuita: i have internal users who may need to send certain attachments such as .jpgs in an email message, and shouldn't have to .zip the .jpgs
<10> its bad pratict to allow .exe, everybody knows that (l)user are stupid, sonner or later they will bite the hook
<10> and you dont allow .jpg's? now that is being bad 8)
<9> higuita: i'm trying to block incoming .jpg and .gif attachments (potential porn spam) but allow legitimate .jpg attachments outbound
<10> i cant really help you, i have little practic with amavis, but i dont recall seeing any options to byp*** the file checking for some user
<10> maybe you cant create a rule that byp*** the amavis for that user?
<10> if its just send, you can use 2 smtp servers... its not perfect, but...
<9> yeah i might end up doing that, it would just be nice to have the ability to specifically whitelist in this manner
<10> maybe you can whitelist a special filename, something like name.allow.jpeg... err.. forget, i cant remember what options amavis have, so i cant imagine a workaround (note to myself, play more with amavis)
<11> if i want to read a specific deferred email from the spool. any suggestions on programs for doing that?
<10> postcat /var/spool/postfix/defer/A/B/AB534FE6 |less
<11> ohh cool thanks:)
<12> postcat -q AB534FE6 # don't need the path!
<11> even nicer, thanks
<13> someone say something funny.
<14> I'm migrating a domain from postfix to gmail.
<14> Is there a way to reintroduce Maildir files into the queue after the MX change?
<10> tarvid: you can try something like this: for i in ~/Maildir/*/* ; do nail -a $i your_email@gmail.com ; done
<10> this way all emails will get to the gmail as a attach from your email (you lose the from, subject, etc)
<10> if you want to keep then, use the sendmail $i or something like this to literaly use the mail as the mail
<14> I'd like to keep that. The MX for the domain changes to gmail and the current server moves to a subdomain
<15> gmail does domain hosting?
<10> and setup your local mailserver to deliver you email to gmail instead localy (something like a .forward with you gmail address)
<14> they do now (beta)
<14> the destination address stays the same, the sending server changes from domain to subdomain
<14> I'm hoping to reintroduce the messages, have postfix look up the new MX and send the mail as a relay
<9> higuita: i ended up doing this and got it working fine - http://marc.theaimsgroup.com/?l=amavis-user&m=113415019700881&w=2
<10> tarvid: the from doesnt matter, the destination is the one important... so fixing the proper destination server will do what you want
<10> thanks Zaw, i will check it and learn a bit more
<10> .)
<10> :)
<9> np, thanks for trying to help
<14> higuita, the destination is correct but has already been received and resides in maildirs
<10> use my "script"
<14> i'd like to reintroduce Maildir contents into postscript as if they just arrived
<10> for i in ~/Maildir/*/* ; do sendmail your_email@gmail.com <$i ; done
<10> for i in ~/Maildir/*/* ; do sendmail your_email@gmail.com <$i && rm $i ; done
<10> this way it will delete already sent emails
<14> thanks, I'll try that
<10> test and tune up the script before trusting all your email, i didnt run it
<14> I will try it on individual emails until I get what I want, thanks
<16> How can I make all spam and infected emails be placed in the users "junk" folder?
<17> i got a question i have a few domains on my server and i can only email between my hosted domains and not outside of my server
<15> Your answer is probably in your logs. And this might help too:
<15> !basic
<18> rob0: 'basic' : http://www.postfix.org/BASIC_CONFIGURATION_README.html : a good starting place for Postfix beginners, many common questions are answered here.
<17> k thanks
<17> ok i give up
<17> i tried and couldnt figure it out
<17> its weird cause postfix by default shouid email out to anyone
<19> Only from mynetworks or auth'd senders
<15> http://www.postfix.org/BASIC_CONFIGURATION_README.html#relay_from
<16> Is there anyway to make all spam and infected emails be placed in the users "junk" folder?
<19> That's up to your MDA
<16> With infected emails subject changed to include **VIRUS*
<16> MDA?
<19> mail delivery agent
<16> isnt that postfix?
<15> no
<15> well, sometimes, but not for complex things like that
<16> hrm
<16> would it be dovecot? lol
<15> maildrop, or maybe the dovecot LDA
<16> hrm
<15> (That's still in CVS only.)
<16> postfix/virtual[31280]: B3B90640B3: to=<test@example.com>, relay=virtual, delay=0.13, delays=0.1/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to maildir)
<16> that makes it seem that postfix is doing the delivering
<15> yes
<19> Then you need a different MDA
<15> but the virtual(8) delivery agent cannot do what you want.
<16> hrm
<19> rob0++
<16> well, my users don't want to miss any spam
<15> :)
<19> But, can't stop it all without pulling the ethernet cable :/
<16> eventually I want to give them the option of either putting it in a junk folder, or marking it with **SPAM** in the subject
<19> Which I've threatened to do
<15> No, but I'm happy blocking about 99%.
<19> Except my spamtrap, i block a bunch... Now that i have way more horsepower then I need, I'm considering moving amavisd-new pre-queue
<17> on this line what are the /8 and the /32 ?mynetworks = 127.0.0.0/8 168.100.189.2/32
<19> google cidr, and learn basic networking... imo
<19> Didn't mean to piss him off......
<16> bastard!
<19> No news here, move on....
<19> rob0: How are you rejecting 99%?
<15> Oh, just the usual stuff ... helo checks, good RBL's, greylisting. I don't know if it's exactly 99%, but I do know that no one seems overwhelmed by the spam burden.
<19> k, i'm doing the same.. May not be the same RBL's, but greylisting helps a bunch
<15> My one quirk is that I use Spamcop with 451's.
<15> That way the occasional FP's are retried, just delayed a long time.
<19> Ahhh
<19> Might have to look into that
<15> I've seen Hotmail outbound relays listed in Spamcop, but it's no problem, the next time around they try from a different relay, or the listing times out.
<19> I've had them on my local spamtrap, expires in days so have to deal with it fairly quickly
<17> howdy
<17> how can i check if my domain got black listed due to people relaying off of it
<19> openrbl.org
<15> Most blacklists are not by "domain", they are by IP address. There are RHSBL's which list domains, but their use is not very widespread, overall not as effective against spam.
<17> well its not blacklisted
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