Re: A question about Postfix and virus scanning

Ali Majdzadeh put forth on 11/30/2009 12:28 AM: > Hello all, > I do not know whether here is the right place to ask this question or > not, but I would like to know if it is a good idea to perform offline > e-mail virus scanning. By offline, I mean a scenario in which e-mail > filtering management

Re: A question about Postfix and virus scanning

Stan, Hi Thanks for your detailed response. Actually, the main reason which drove us toward performing virus scanning as an offline process was performance. As we deal with large amounts of e-mails, we found the way amavisd-new or other filtering management tools performing filtering too slow. We i

Re: A question about Postfix and virus scanning

Quoting Ali Majdzadeh : Stan, Hi Thanks for your detailed response. Actually, the main reason which drove us toward performing virus scanning as an offline process was performance. As we deal with large amounts of e-mails, we found the way amavisd-new or other filtering management tools performi

Blocking From Certain domain to Certain User

Dear All, I am using postfix and I don't know if my question already posted it before or not, I have problem that I need to blocking from certain domain such as facebook.com to my certain user (x...@satnetcom.com), I have search from google but no luch try using header_checks with condition if and

RE: Bounce a particular recipient address with specified reject message

Sahil, et.al: >Use an access(5) or transport(5) map: It appears that using an access map would best meet my need. I do not currently use an access map. Can you/anyone assist me with the proper placement of check_client_access hash:/etc/postfix/access in my setup? I don't want to screw up my

Re: Mail from cron delay

On Sun, Nov 29, 2009 at 02:42:14PM -0800, Emmett Culley wrote: > For some months I've been noticing on multiple servers that mail from a cron > job defined in the root's crontab takes 24 hours to get to it's destination. > It finally bugged me enough to have me take a look for the reason. This

Something like address based relay just the other way around

Hello I just wonder whether my idea is technically possible to fullfill with Postfix. I already use sender based relaying which works fine. My problem is that I'm running a Postfix Server on my dynamic IP-Address. I would say for 80% of the receivers is no problem to send the emails directly (dire

Re: Mail from cron delay

Victor Duchovni: > On Sun, Nov 29, 2009 at 02:42:14PM -0800, Emmett Culley wrote: > > > For some months I've been noticing on multiple servers that mail from a > > cron job defined in the root's crontab takes 24 hours to get to it's > > destination. It finally bugged me enough to have me take a

Re: Something like address based relay just the other way around

Tobi: > Hello > > I just wonder whether my idea is technically possible to fullfill with > Postfix. I already use sender based relaying which works fine. > My problem is that I'm running a Postfix Server on my dynamic IP-Address. I > would say for 80% of the receivers is no problem to send the ema

Re: Mail from cron delay

On 11/29/2009 03:27 PM, Wietse Venema wrote: > Emmett Culley: >> For some months I've been noticing on multiple servers that mail >> from a cron job defined in the root's crontab takes 24 hours to >> get to it's destination. It finally bugged me enough to have me >> take a look for the reason. Th

Re: Mail from cron delay

On Mon, Nov 30, 2009 at 10:35:02AM -0800, Emmett Culley wrote: > It seems like understanding where the "delay=86457" > and "delays=86457/0/0.36/0.18" come from would probably help me to > understand the 24 delay. Not really. The message took 1 day to enter the active queue, not surprising, since

Re: Something like address based relay just the other way around

Wietse Venema schrieb: > Tobi: > >> Hello >> >> I just wonder whether my idea is technically possible to fullfill with >> Postfix. I already use sender based relaying which works fine. >> My problem is that I'm running a Postfix Server on my dynamic IP-Address. I >> would say for 80% of the rece

Re: A question about Postfix and virus scanning

Eero Volotinen put forth on 11/30/2009 2:14 AM: > Quoting Ali Majdzadeh : > >> Stan, >> Hi >> Thanks for your detailed response. Actually, the main reason which >> drove us >> toward performing virus scanning as an offline process was >> performance. As >> we deal with large amounts of e-mails, we

RE: Bounce a particular recipient address with specified reject message

I tried to setup an access map and reject a specific user. But the mails to that user are not rejected. I tried adding the access map in a few different places in the configuration, so far none worked. It shows up in the smtpd_recipient_restrictions line below. Can anyone see what I did wrong?

Re: Blocking From Certain domain to Certain User

Marky Yehezkiel (SNC) put forth on 11/30/2009 7:47 AM: > Dear All, > > I am using postfix and I don’t know if my question already posted it > before or not, I have problem that I need to blocking from certain > domain such as facebook.com to my certain user (x...@satnetcom.com >

Re: A question about Postfix and virus scanning

Stan Hoeppner wrote: Eero Volotinen put forth on 11/30/2009 2:14 AM: Quoting Ali Majdzadeh : Stan, Hi Thanks for your detailed response. Actually, the main reason which drove us toward performing virus scanning as an offline process was performance. As we deal with large amounts of e-mails, we

Re: Something like address based relay just the other way around

tobi: [ Charset ISO-8859-1 unsupported, converting... ] > Wietse Venema schrieb: > > Tobi: > > > >> Hello > >> > >> I just wonder whether my idea is technically possible to fullfill with > >> Postfix. I already use sender based relaying which works fine. > >> My problem is that I'm running a Pos

Re: Bounce a particular recipient address with specified reject message

techlist06 put forth on 11/30/2009 1:59 PM: > I tried to setup an access map and reject a specific user. But the mails to > that user are not rejected. I tried adding the access map in a few > different places in the configuration, so far none worked. It shows up in > the smtpd_recipient_restric

Re: A question about Postfix and virus scanning

Michael Katz wrote: There are many filtering Postfix AV solutions that are far more efficient than Amavisd and many AV scanners that are considerably more scalable than clamav such. A few years ago we did some detailed testing between ClamAV and commercial av scanners and the difference was h

Re: A question about Postfix and virus scanning

Michael Katz put forth on 11/30/2009 2:45 PM: > There are many filtering Postfix AV solutions that are far more > efficient than Amavisd and many AV scanners that are considerably more > scalable than clamav such. A few years ago we did some detailed testing > between ClamAV and commercial av sca

Re: Something like address based relay just the other way around

Wietse Venema schrieb: > tobi: > [ Charset ISO-8859-1 unsupported, converting... ] > >> Wietse Venema schrieb: >> >>> Tobi: >>> >>> Hello I just wonder whether my idea is technically possible to fullfill with Postfix. I already use sender based relaying which w

RE: Bounce a particular recipient address with specified reject message

> You have: >check_client_access hash:/etc/postfix/access >which is wrong for matching email addresses: Thanks, that fixed my error. >check_recipient_access hash:/etc/postfix/access >BTW, if you are trying to block all access to this email address, why >not just remove it from your list(s) of val

Re: A question about Postfix and virus scanning

Eero Volotinen put forth on 11/30/2009 2:59 PM: > Michael Katz wrote: > >> There are many filtering Postfix AV solutions that are far more >> efficient than Amavisd and many AV scanners that are considerably more >> scalable than clamav such. A few years ago we did some detailed >> testing betwee

Re: Bounce a particular recipient address with specified reject message

techlist06 put forth on 11/30/2009 3:14 PM: >> You have: >> check_client_access hash:/etc/postfix/access >> which is wrong for matching email addresses: > > Thanks, that fixed my error. > >> check_recipient_access hash:/etc/postfix/access >> BTW, if you are trying to block all access to this emai

RE: Bounce a particular recipient address with specified reject message

>So, lemme get this straight. You changed the list address, but instead >of just sending an email to the list addresses telling all users of the >list address change, you just decided to, in essence, inform >them via an >NDR when they send mail to the list? There have got to be at >least 1000 >

Re: How to make the original mail show a correct addresser?

yuzifu a écrit : > I use the mail service of google apps now, I have pointed to > mydomain.com MX record to google apps, but it is > too slow, so I install a POSTFIX server in my LAN. > My domain is a "mydomain.com ", > "i...@mydomain.com/mypasswd

Re: A question about Postfix and virus scanning

Stan Hoeppner: > Michael Katz put forth on 11/30/2009 2:45 PM: > > > There are many filtering Postfix AV solutions that are far more > > efficient than Amavisd and many AV scanners that are considerably more > > scalable than clamav such. A few years ago we did some detailed testing > > between C

postfix gateway with empty relay_recipient_maps plus VRFY

Hi, I know, this issue has been discussed quite often, but nevertheless I am just wondering if something was possible to circumvent the missing list of recipients. Imagine a situation where there is a main postfix gateway used for spam defence, transporting successfully passed emails to the

Re: Something like address based relay just the other way around

tobi schrieb: > Wietse Venema schrieb: > >> tobi: >> [ Charset ISO-8859-1 unsupported, converting... ] >> >> >>> Wietse Venema schrieb: >>> >>> Tobi: > Hello > > I just wonder whether my idea is technically possible to fullfi

Re: postfix gateway with empty relay_recipient_maps plus VRFY

Udo Rader wrote: Hi, I know, this issue has been discussed quite often, but nevertheless I am just wondering if something was possible to circumvent the missing list of recipients. Imagine a situation where there is a main postfix gateway used for spam defence, transporting successfully pa

Re: postfix gateway with empty relay_recipient_maps plus VRFY

Eero Volotinen wrote: Udo Rader wrote: Hi, I know, this issue has been discussed quite often, but nevertheless I am just wondering if something was possible to circumvent the missing list of recipients. Imagine a situation where there is a main postfix gateway used for spam defence, trans

Re: A question about Postfix and virus scanning

Michael Katz a écrit : > Stan Hoeppner wrote: >> Eero Volotinen put forth on 11/30/2009 2:14 AM: >>> Quoting Ali Majdzadeh : >>> Stan, Hi Thanks for your detailed response. Actually, the main reason which drove us toward performing virus scanning as an offline process was >

building on FreeBSD 8.0?

I know there are instructions in the INSTALL document how to "port" postfix to "unsupported systems" but I wonder if the list here has any help for getting postfix built on newly released FreeBSD 8.0. . . I tried simply duping the makedefs line for FreeBSD 7: FreeBSD.7*) SYSTYPE=FREEBSD7

Re: Bounce a particular recipient address with specified reject message

On 11/30/2009 3:52 PM, techlist06 wrote: So, lemme get this straight. You changed the list address, but instead of just sending an email to the list addresses telling all users of the list address change, you just decided to, in essence, inform them via an NDR when they send mail to the list? T

Re: A question about Postfix and virus scanning

Wietse Venema put forth on 11/30/2009 3:56 PM: >> The cost of a modern plenty powerful (CPU/memory) 1U server with a >> couple of fast sata disks is around $1000-2000, paid _once_ with no >> recurring licensing fees as all the software is FOSS, with minimal power >> usage, maybe $100/year. What's

Re: building on FreeBSD 8.0?

-- From: Sent: Tuesday, December 01, 2009 12:40 AM To: Subject: building on FreeBSD 8.0? I know there are instructions in the INSTALL document how to "port" postfix to "unsupported systems" but I wonder if the list here has any help for getting

Re: building on FreeBSD 8.0?

b...@electricembers.net put forth on 11/30/2009 4:40 PM: > I know there are instructions in the INSTALL document how to "port" > postfix to "unsupported systems" but I wonder if the list here has any > help for getting postfix built on newly released FreeBSD 8.0. . . Why not try this, since Sahil

Re: building on FreeBSD 8.0?

On Mon, 30 Nov 2009, b...@electricembers.net wrote: > I know there are instructions in the INSTALL document how to "port" > postfix to "unsupported systems" but I wonder if the list here has > any help for getting postfix built on newly released FreeBSD 8.0. . > . > > I tried simply duping the ma

RE: Blocking From Certain domain to Certain User

The reason that I need to do this, I using alias email on postfix and that alias will distribute email to few email inside it, and many invite email from twitter, facebook etc send to this alias and annoying us, I can't reject totally of facebook, twitter etc because a lot of email account usin

Re: Blocking From Certain domain to Certain User

On 11/30/2009 6:56 PM, Marky Yehezkiel (SNC) wrote: The reason that I need to do this, I using alias email on postfix and that alias will distribute email to few email inside it, and many invite email from twitter, facebook etc send to this alias and annoying us, I can't reject totally of fac

RE: Blocking From Certain domain to Certain User

Thanks noel I will read it carefully -Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Noel Jones Sent: Tuesday, December 01, 2009 9:06 AM To: postfix-users@postfix.org Subject: Re: Blocking From Certain domain to Certain Use

RE: Bounce a particular recipient address with specified reject message

Noel: Thank you. >The envelope sender where delivery problems are reported can >be different from the From: header displayed in most email >clients, which can also be different from the Reply-To: header >where most mail clients will send if you hit the "Reply" button. > >You mustn't block the

Re: A question about Postfix and virus scanning

On 11/30/2009 3:11 AM, Ali Majdzadeh wrote: Stan, Hi Thanks for your detailed response. Actually, the main reason which drove us toward performing virus scanning as an offline process was performance. As we deal with large amounts of e-mails, we found the way amavisd-new or other filtering manage

Re: building on FreeBSD 8.0?

On 30-Nov-2009, at 15:40, b...@electricembers.net wrote: > I know there are instructions in the INSTALL document how to "port" postfix > to "unsupported systems" but I wonder if the list here has any help for > getting postfix built on newly released FreeBSD 8.0. . . Did `portinstall postfix` n

Re: Something like address based relay just the other way around

On Mon, Nov 30, 2009 at 11:02:22PM +0100, tobi wrote: > > cat /opt/etc/postfix/transport | grep -v "#" > > postfix.org smtp:[smtp.mysip.ch]:587 > > domain.tld smtp:[smtp.myotherisp.ch]:587 > > Problem found 30cm in front of the screen. > After changing the transport > > postfix.org smtp:[

Re: How to make the original mail show a correct addresser?

On Mon, Nov 30, 2009 at 10:56:04PM +0100, mouss wrote: > anyway, the From: header is set by your mailer (thunderbird, outlook, > whatever). postfix is an MTA: it doesn't care about what headers your > mailer sets. the role of an MTA is mail routing, not mail composition. But, for internal domain

Re: A question about Postfix and virus scanning

Dear friends, Thanks for this nice discussion. Actually, as a project, we are going to deliver an e-mail architecture which supports over 100 users. We use Postfix, courier-imap, amavisd-new, spamassassin and clamav and of course the tools needed to balance the load between multiple instances o