Re: newbie check Was [Re: port 25 submission settings sanity check]

On 8/30/2013 10:12 AM, Terry Gilsenan wrote: > I am not talking about implementing SMTP on UDP, I am taking about the > possibility of adding a side-channel for bulk data that would use UDP. I'm really surprised nobody has mentioned this yet. It seems there's a far simpler solution to the descr

Re: Duplicate postfix bounces to download

FliedRice: > I have a problem with a plesk server using postfix in which I am > receiving double bounces, duplicates of the same bounce, from my > mailing program. This means that when I download the bounces in > order to filter them I have double the amount to download and would > highly prefer on

Re: access map as smtpd_sender_restrictions value

Viktor Dukhovni dukhovni.org> writes: > > On Fri, Aug 30, 2013 at 06:52:52PM +0200, Fabio Sangiovanni wrote: > > > I've noticed that the syntax: > > > > smtpd_sender_restrictions = pcre:/etc/postfix/sender_access > > > > is valid, and by all means as effective as: > > > > smtpd_sender_re

RE: Re-inventing TCP (was: newbie check..)

That could have disastrous consequences for the rest of the traffic on that link. From: Wietse Venema Sent: ‎30/‎08/‎2013 10:27 AM To: Postfix users Subject: Re-inventing TCP (was: newbie check..) Terr

Re: misc postfix questions

On 8/30/2013 2:17 PM, Littlefield, Tyler wrote: > Hello all: > I had a couple of questions. > First, I was curious how most people tend to handle quota. I have > some disk space on my server, but not a lot. I need to create email > accounts for individual > staff, but need to put a hard limit on th

Re: SMTP sender accepted when from a different domain

On Fri, Aug 30, 2013 at 3:48 PM, John Peach wrote: > On Fri, 30 Aug 2013 15:43:01 -0400 > Jean-Sébastien Nicaise wrote: > > [snip] > > > > I'm hoping for something simple like: user sends an email. Postfix looks > at > > MAIL FROM. Is the email address part of $mydomain? if so, relay mail. If >

Re: email from comcast.net is bouncing

On 8/30/2013 2:27 PM, Grant wrote: >>> I grep'ed the mail logs for dnsblog and got a huge number of these: >>> >>> [postfix/postscreen] warning: psc_dnsbl_request: connect to >>> private/dnsblog service: No such file or directory >> >> Looks as if you've found the problem. >> >> Make sure your mast

Re: SMTP sender accepted when from a different domain

On Fri, Aug 30, 2013 at 3:25 PM, /dev/rob0 wrote: > On Fri, Aug 30, 2013 at 03:12:40PM -0400, Jean-Sébastien Nicaise > wrote: > > On Fri, Aug 30, 2013 at 2:44 PM, Wietse Venema > > wrote: > > > > > Jean-S?bastien Nicaise: > > > > I'm verifying the sender email (mail from:) of mails sent from > >

Re: SMTP sender accepted when from a different domain

On Fri, 30 Aug 2013 15:52:22 -0400 Jean-Sébastien Nicaise wrote: > On Fri, Aug 30, 2013 at 3:48 PM, John Peach wrote: > > > On Fri, 30 Aug 2013 15:43:01 -0400 > > Jean-Sébastien Nicaise wrote: > > > > [snip] > > > > > > I'm hoping for something simple like: user sends an email. Postfix looks >

Re: SMTP sender accepted when from a different domain

On Fri, Aug 30, 2013 at 03:12:40PM -0400, Jean-Sébastien Nicaise wrote: > On Fri, Aug 30, 2013 at 2:44 PM, Wietse Venema > wrote: > > > Jean-S?bastien Nicaise: > > > I'm verifying the sender email (mail from:) of mails sent from > > > local users, not the recipient email (rcpt to:). > > > > In

Re: SMTP sender accepted when from a different domain

Jean-S?bastien Nicaise: > I'm verifying the sender email (mail from:) of mails sent from local users, > not the recipient email (rcpt to:). In that case. /etc/postfix/main.cf: smtpd_reject_unlisted_sender = yes This turns on "used unknown" tests for for MAIL FROM addresses. Wietse

Re: email from comcast.net is bouncing

>> I grep'ed the mail logs for dnsblog and got a huge number of these: >> >> [postfix/postscreen] warning: psc_dnsbl_request: connect to >> private/dnsblog service: No such file or directory > > Looks as if you've found the problem. > > Make sure your master.cf has an entry like: > > dnsblog unix

Re: SMTP sender accepted when from a different domain

On Fri, Aug 30, 2013 at 2:44 PM, Wietse Venema wrote: > Jean-S?bastien Nicaise: > > I'm verifying the sender email (mail from:) of mails sent from local > users, > > not the recipient email (rcpt to:). > > In that case. > > /etc/postfix/main.cf: > smtpd_reject_unlisted_sender = yes > > This t

misc postfix questions

Hello all: I had a couple of questions. First, I was curious how most people tend to handle quota. I have some disk space on my server, but not a lot. I need to create email accounts for individual staff, but need to put a hard limit on their quota. Do you just set up a limit and then not allow

Re: Re-inventing TCP (was: newbie check..)

Am 30.08.2013 19:36, schrieb Terry Gilsenan: > The killer on high latency links is the tcp-window and the continual wait for > ack. With links above 1000ms this compounded delay reduces the available > bandwidth to a very small percentage of the interface speed (eg:256kbps on a > 2mbps link). W

Re: Re-inventing TCP (was: newbie check..)

On 30 Aug 2013, at 18:36, Terry Gilsenan wrote: > The killer on high latency links is the tcp-window and the continual wait for > ack. With links above 1000ms this compounded delay reduces the available > bandwidth to a very small percentage of the interface speed (eg:256kbps on a > 2mbps link

Re: SMTP sender accepted when from a different domain

I'm verifying the sender email (mail from:) of mails sent from local users, not the recipient email (rcpt to:). the mapping parameter used in this case it: *smtpd_sender_login_maps * My question still stands...* * On Fri, Aug 30, 2013 at 1:50 PM, Wietse Venema wrote: > Jean-S?bastien Nicaise:

RE: Re-inventing TCP (was: newbie check..)

-Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Robert Sander Sent: Saturday, 31 August 2013 3:47 AM To: postfix-users@postfix.org Subject: Re: Re-inventing TCP (was: newbie check..) >Am 30.08.2013 19:36, schrieb Terry Gilsena

Re: SMTP sender accepted when from a different domain

Please don't top-post your replies here. Thank you. On Fri, Aug 30, 2013 at 02:00:09PM -0400, Jean-Sébastien Nicaise wrote: > I'm verifying the sender email (mail from:) of mails sent from > local users, not the recipient email (rcpt to:). > > the mapping parameter used in this case it: *smtpd_s

RE: Re-inventing TCP (was: newbie check..)

-Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema Sent: Saturday, 31 August 2013 2:56 AM To: Postfix users Subject: Re: Re-inventing TCP (was: newbie check..) >Terry Gilsenan: >> I have done testing with file trans

Re: SMTP sender accepted when from a different domain

Jean-S?bastien Nicaise: > If a local user sends an email with an invalid email address (mailf > from:inva...@example.com, for example), the ldap table lookup does not > return anything, hence the mail is blocked. > > If a local user sends an email with a valid email (mail > from:us...@example.com,

Duplicate postfix bounces to download

I have a problem with a plesk server using postfix in which I am receiving double bounces, duplicates of the same bounce, from my mailing program. This means that when I download the bounces in order to filter them I have double the amount to download and would highly prefer only 1, I do not need 2

Re: Re-inventing TCP (was: newbie check..)

On Fri, Aug 30, 2013 at 06:00:50PM +, Terry Gilsenan wrote: > -Original Message- > From: owner-postfix-us...@postfix.org > [mailto:owner-postfix-us...@postfix.org] On Behalf Of Robert Sander > Sent: Saturday, 31 August 2013 3:47 AM > To: postfix-users@postfix.org > Subject: Re: Re-inve

SMTP sender accepted when from a different domain

Apoligies if I'm not using the mailing list incorrectly, first time using one. I have a postfix installation that is used to relay mails from local users and to receive mail from external domains. my domain: example.com my domain is setup with active directory lookup. If a local user sends an e

Re: access map as smtpd_sender_restrictions value

On Fri, Aug 30, 2013 at 06:52:52PM +0200, Fabio Sangiovanni wrote: > I've noticed that the syntax: > > smtpd_sender_restrictions = pcre:/etc/postfix/sender_access > > is valid, and by all means as effective as: > > smtpd_sender_restrictions = > check_sender_access pcre:/etc/postfix/sender

Re: Re-inventing TCP (was: newbie check..)

Terry Gilsenan: > I have done testing with file transfers using both TCP and UDP, Wietse > Would not the same result be achieved by disabling TCP congestion > control? I am not implying that doing so is a good idea. Terry Gilsenan: > That could have disastrous consequences for the rest of the tra

access map as smtpd_sender_restrictions value

Hi list, I've noticed that the syntax: smtpd_sender_restrictions = pcre:/etc/postfix/sender_access is valid, and by all means as effective as: smtpd_sender_restrictions = check_sender_access pcre:/etc/postfix/sender_access I couldn't find this syntax in the documentation, would you please p

Re-inventing TCP (was: newbie check..)

Terry Gilsenan: > I have done testing with file transfers using both TCP and UDP, Would not the same result be achieved by disabling TCP congestion control? I am not implying that doing so is a good idea. Wietse

RE: newbie check Was [Re: port 25 submission settings sanity check]

-Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Glenn English Sent: Saturday, 31 August 2013 12:52 AM To: postfix-users@postfix.org Subject: Re: newbie check Was [Re: port 25 submission settings sanity check] On Aug 30, 2013,

RE: newbie check Was [Re: port 25 submission settings sanity check]

-Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Glenn English Sent: Saturday, 31 August 2013 12:52 AM To: postfix-users@postfix.org Subject: Re: newbie check Was [Re: port 25 submission settings sanity check] On Aug 30, 2013,

RE: newbie check Was [Re: port 25 submission settings sanity check]

-Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Jan P. Kessler Sent: Saturday, 31 August 2013 12:21 AM To: postfix-users@postfix.org Subject: Re: newbie check Was [Re: port 25 submission settings sanity check] >> As attachme

Re: newbie check Was [Re: port 25 submission settings sanity check]

On Aug 30, 2013, at 7:07 AM, Terry Gilsenan wrote: > As attachments get larger, and end users use email rather than ftp for file > transfer for convenience sake, a UDP implementation, perhaps using UDP as a > data streaming channel could become a very useful configuration, and the > transfer s

Re: newbie check Was [Re: port 25 submission settings sanity check]

As attachments get larger, and end users use email rather than ftp for file transfer for convenience sake, a UDP implementation, perhaps using UDP as a data streaming channel could become a very useful configuration, and the transfer speed over high latency links (think satellite etc) could i

email based streaming over UDP

On 30 Aug 2013, at 14:07, Terry Gilsenan wrote: > As attachments get larger, and end users use email rather than ftp for file > transfer for convenience sake, a UDP implementation, perhaps using UDP as a > data streaming channel could become a very useful configuration, and the > transfer spee

RE: newbie check Was [Re: port 25 submission settings sanity check]

Well, As attachments get larger, and end users use email rather than ftp for file transfer for convenience sake, a UDP implementation, perhaps using UDP as a data streaming channel could become a very useful configuration, and the transfer speed over high latency links (think satellite etc) cou

Re: email from comcast.net is bouncing

Grant: > >> Aug 26 21:21:35 [postfix/tlsproxy] CONNECT from [209.85.219.51]:41193 > >> Aug 26 21:21:36 [postfix/postscreen] NOQUEUE: reject: RCPT from > >> [209.85.219.51]:41193: 450 4.3.2 Service currently unavailable; > >> from=, to=, proto=ESMTP, > >> helo= > >> Aug 26 21:21:36 [postfix/tlsproxy

Re: email from comcast.net is bouncing

On 8/30/2013 3:44 AM, Grant wrote: > > I grep'ed the mail logs for dnsblog and got a huge number of these: > > [postfix/postscreen] warning: psc_dnsbl_request: connect to > private/dnsblog service: No such file or directory Looks as if you've found the problem. Make sure your master.cf has an e

Re: email from comcast.net is bouncing

>> > Aug 26 21:21:35 [postfix/tlsproxy] CONNECT from >> > [209.85.219.51]:41193 >> > Aug 26 21:21:36 [postfix/postscreen] NOQUEUE: reject: RCPT from >> > [209.85.219.51]:41193: 450 4.3.2 Service currently unavailable; >> > from=, to=, proto=ESMTP, >> > helo= >> > Aug 26 21:21:36 [postfix/tlsproxy]

Re: email from comcast.net is bouncing

>> Aug 26 21:21:35 [postfix/tlsproxy] CONNECT from [209.85.219.51]:41193 >> Aug 26 21:21:36 [postfix/postscreen] NOQUEUE: reject: RCPT from >> [209.85.219.51]:41193: 450 4.3.2 Service currently unavailable; >> from=, to=, proto=ESMTP, >> helo= >> Aug 26 21:21:36 [postfix/tlsproxy] DISCONNECT [209.8