different user levels receiving and sending

Hi folks. I'm using postfix-2.3.3 in a linux box with about 90 mail accounts. Everything is ok. But, now, I need to establish 2 user levels and the following requirements on levels: 1. All users in Level 1 can receive emails from only one top level external email domain (for ex

conten filter and always_bcc parameter

Hi folks I've been trying postfix version 2.3.3 + amavisd-new + clamav for a while and it's working pretty cool. I sent an email with a .EXE attached just for testing purposes, so I received a message from content-filter .. saying that's not allowed, but I can see in the body of the mess

Re: Avoid Relaying

ubject: Re: Avoid Relaying Please keep this discussion on-list. I'm not doing personal support for free. And please don't top-post. On 2010-01-20 Davy Leon wrote: As I said authentication is not the solution. Some of my clients use the server to access their real smtp server, and I

Avoid Relaying

Hi folks How can I avoid smtp clients from my local network trying to relay mail trough my server? I need to specify clients wich "from" address are not mapped in the canonical or virtual table. I need some ideas here. Thanks David

Re: question about smtp_connection_cache

Thanks Wietse. Very usefull your answer. I was making a huge mistake. Thanks - Original Message - From: "Wietse Venema" To: "Postfix users" Sent: Friday, January 08, 2010 11:35 AM Subject: Re: question about smtp_connection_cache Davy Leon: Hi folks I h

question about smtp_connection_cache

Hi folks I have a Centos 5.3 Box running postfix 2.6.3 . I use an smarthost in a per user authentication basis. I meant every local user has a passwrod to use against the smarthost. My question is, in this conditions is it possible to take advantage of smtp_connection_cache so all the queued me

certificate error

Hi folks I'm getting this message in my /var/log/maillog everytime postfix delivers a message. The message is delivered, but it logs this message. How can I solve this? Thanks Davy Jan 6 18:17:25 centrino postfix/smtp[3699]: certificate verification failed for smarthost.example.com: num=20

Re: Dialup not on-demand

thanks Viktor - Original Message - From: "Victor Duchovni" To: Sent: Friday, October 09, 2009 11:55 AM Subject: Re: Dialup not on-demand On Fri, Oct 09, 2009 at 12:32:53PM -0500, Davy Leon wrote: Hi folks When running postfix on a dialup machine you must disable s

Re: TLS question

Thanks for the clarification. David - Original Message - From: "Wietse Venema" To: "Postfix users" Cc: "Postfix users" Sent: Monday, October 05, 2009 8:34 AM Subject: Re: TLS question Davy Leon: Hi guys I have a little problem here. I'm try

TLS question

Hi guys I have a little problem here. I'm trying to deliver mail with my postfix using gmail as an smarthost. I get this error host smtp.gmail.com[74.125.91.109] said: 530 5.7.0 Must issue a STARTTLS command first. 22sm628904qyk.10 (in reply to MAIL FROM command) I'm wondering if the an

Re: attachment manipulations

ok sounds like an alternative, but, in my case, as I told before, most of my clients are on dialup, so one high res pic attached, let's say 3 MB it's like about 15 minutes of conection to get the message using POP or IMAP, so, my idea was letting the user enjoy the picture (silently modified) in

attachment manipulations

Hi guys I hope some of you can help in this work around I need to do. My internet conection is a very slow one, and most of the email clients are on dialup, so I need to enforce limits to the message size. I'm thinking in those email that arrive with big attachments, some of them are high res p

Re: smarthost issue

From: "Wietse Venema" To: "Postfix users" Sent: Wednesday, August 26, 2009 10:43 AM Subject: Re: smarthost issue Ing. Davy Leon: Hi all I have a postfix 2.3.3 running on Centos 5.3. Postfix delivers mail through an authenticated smarthost based on a per user authenticati

smarthost issue

Hi all I have a postfix 2.3.3 running on Centos 5.3. Postfix delivers mail through an authenticated smarthost based on a per user authentication. Everything works fine until some smarthost's account get blocked for some brute force attack or something. The fact is that any mail from that user w

Re: Understanding rate limiting with anvil.

Wich policy daemon would you guys recommend to install? I have a Postfix 2.3.3 with amavisd-new and clamav running. Cheers David

Message Size from network and localhost

Hi guys There is a way I currently have a postfix 2.3.3 running. The parameter message_size_limit = 100 and it's working fine. My question is. There is a way to keep this limits for network conections, but stablish a bigger limit or less restrictive limit to conections from localhost or o

transforming attachment

Hi folks, I have a question for you. I have a Centos 5.3 with postfix 2.3.3. I'm using Amavisd-new and clamav for virus checking. My server daily receive lots of messages with JPG files attached. The number of JPF files in each message is variable. My question is. When receiving an email with a

message priority

Hi folks When processing Postfix queue is possible to give priority to smaller messages and slowdown messages with attachments? Thanks in advance David

Re: scheduled queue

thanks, I will try this. - Original Message - From: "Brian Evans - Postfix List" To: "Postfix users" Sent: Tuesday, July 14, 2009 11:42 AM Subject: Re: scheduled queue Ing. Davy Leon wrote: Hi guys I have a question. Is that possible to make postfix keep m

scheduled queue

Hi guys I have a question. Is that possible to make postfix keep messages bigger than let's say 500K in the queue for delivery at certain hours, let say night hours to save bandwith? Thanks in advance David

smarthost issue

Hello guys I deliver all my outgoing email to an smarthost. This smarthost is sender dependant password protected. How can postfix make the delivery? I think, every time posrfix open a SMTP session with the smarthost after authentication should deliver one message and close it. If deliver seve

Re: slow link

thank I will test it - Original Message - From: "Noel Jones" To: "Postfix users" Sent: Friday, June 26, 2009 3:15 PM Subject: Re: slow link Ing. Davy Leon wrote: Hi again I'm having troubles with these again, let me explain myself better this time

Re: slow link

. I apreciate your help David - Original Message - From: "Wietse Venema" To: "Postfix users" Sent: Thursday, June 25, 2009 8:00 AM Subject: Re: slow link Ing. Davy Leon: Hello guys Before all, please forget my bad English. I'm newbie in postfix. I want t

Re: slow link

Thanks Wietse I'm checking the links right now. Thanks my friend David - Original Message - From: "Wietse Venema" To: "Postfix users" Sent: Thursday, June 25, 2009 8:00 AM Subject: Re: slow link Ing. Davy Leon: Hello guys Before all, please forget m

slow link

Hello guys Before all, please forget my bad English. I'm newbie in postfix. I want to ask you a question. Let me explain the situation. I have a dialup link. When the link goes up automatically executes a postqueue -f command and mail is delivered. The problem is link speed, I'm getting timeou