Email Server Deployment

2010-12-09 Thread Ranjan
Hi all, This is my first message to the Mailing list. I am planning to deploy a Public Mail server for our company and chose postfix as the MTA. According to the requirement around 25,000 mails are handled per day basis. Can anyone suggest me the Hardware requirements to setup such a server? Tha

Re: Email Server Deployment

2010-12-09 Thread Ranjan Das
Thank you all:) Its my first mission to setup a public mail server. Expecting your further help. Once again thank you. On Fri, Dec 10, 2010 at 10:45 AM, Victor Duchovni < victor.ducho...@morganstanley.com> wrote: > On Fri, Dec 10, 2010 at 10:30:36AM +0530, Ranjan wrote: >

Re: Email Server Deployment

2010-12-09 Thread Ranjan Das
Thank you all:) Its my first mission to setup a public mail server. Expecting your further help. Once again thank you. On Fri, Dec 10, 2010 at 10:45 AM, Victor Duchovni < victor.ducho...@morganstanley.com> wrote: > On Fri, Dec 10, 2010 at 10:30:36AM +0530, Ranjan wrote: >

delaying postfix until/unless VPN is up/connected

2020-03-23 Thread Ranjan Maitra
, Ranjan

Re: delaying postfix until/unless VPN is up/connected

2020-03-23 Thread Ranjan Maitra
On Mon, 23 Mar 2020 15:05:17 -0400 (EDT) Wietse Venema wrote: > >Ranjan Maitra: > > So, I am wondering if I it is possible to have a setup whereby > > postfix is delayed unless/until VPN is up and running. If VPN is > > down, then I would like postfix to be delayed u

Re: delaying postfix until/unless VPN is up/connected

2020-03-23 Thread Ranjan Maitra
On Mon, 23 Mar 2020 16:22:40 -0400 (EDT) Wietse Venema wrote: > Ranjan Maitra: > > So, I am wondering if I it is possible to have a setup whereby > > postfix is delayed unless/until VPN is up and running. If VPN is > > down, then I would like postfix to be delayed unti

Re: delaying postfix until/unless VPN is up/connected

2020-03-23 Thread Ranjan Maitra
nd ifdown-* However, I am a little confused as to what I should do. It appears to me that an example such as here: https://blog.skbali.com/2019/03/start-a-script-on-boot-using-systemd/ would be enough to get this started at boot? Many thanks and best wishes, Ranjan -- Important Notice:

Re: delaying postfix until/unless VPN is up/connected

2020-03-24 Thread Ranjan Maitra
On Tue, 24 Mar 2020 08:49:26 -0400 (EDT) Wietse Venema wrote: > Ranjan Maitra: > > However, I am a little confused as to what I should do. It appears > > to me that an example such as here: > > https://blog.skbali.com/2019/03/start-a-script-on-boot-using-systemd/ > >

Re: delaying postfix until/unless VPN is up/connected

2020-03-24 Thread Ranjan Maitra
On Tue, 24 Mar 2020 16:51:38 +0100 Jaroslaw Rafa wrote: > Dnia 24.03.2020 o godz. 08:49:26 Wietse Venema pisze: > > Ranjan Maitra: > > > However, I am a little confused as to what I should do. It appears > > > to me that an example such as here: > > > htt

Re: delaying postfix until/unless VPN is up/connected

2020-03-25 Thread Ranjan Maitra
On Wed, 25 Mar 2020 10:31:11 -0400 (EDT) Wietse Venema wrote: > Ranjan Maitra: > > So, I have tried to set the relayhost to a specific mailhub address but > > have not been able to make this work. I get a message then which reads like: > > > > delivery temporarily

Re: delaying postfix until/unless VPN is up/connected

2020-03-30 Thread Ranjan Maitra
On Mon, 30 Mar 2020 13:11:42 +0200 Bastian Blank wrote: > On Mon, Mar 23, 2020 at 01:04:44PM -0500, Ranjan Maitra wrote: > > So, I am wondering if I it is possible to have a setup whereby postfix is > > delayed unless/until VPN is up and running. If VPN is down, then I would &

Re: delaying postfix until/unless VPN is up/connected

2020-03-30 Thread Ranjan Maitra
On Mon, 30 Mar 2020 13:11:42 +0200 Bastian Blank wrote: > On Mon, Mar 23, 2020 at 01:04:44PM -0500, Ranjan Maitra wrote: > > So, I am wondering if I it is possible to have a setup whereby postfix is > > delayed unless/until VPN is up and running. If VPN is down, then I would &

Re: delaying postfix until/unless VPN is up/connected

2020-03-30 Thread Ranjan Maitra
On Mon, 30 Mar 2020 22:42:25 -0600 Bob Proulx wrote: > Ranjan Maitra wrote: > > Bastian Blank wrote: > > > I would just reject SMTP connections outgoing on your non-VPN interfaces. > > > | iptables -A OUTPUT -o $vpn -m tcp --dport 25 -j ACCEPT > > > | ipt

Re: delaying postfix until/unless VPN is up/connected

2020-03-31 Thread Ranjan Maitra
expand numbers (display exact values) [!] --fragment -f match second or further fragments only --modprobe= try to insert modules using this command --set-counters PKTS BYTES set the counter during insert/append [!] --version -V print package version. What is wrong here? Many thanks again and best wishes, Ranjan

Re: delaying postfix until/unless VPN is up/connected

2020-03-31 Thread Ranjan Maitra
On Wed, 1 Apr 2020 09:51:31 +1300 Peter wrote: > On 1/04/20 1:42 am, Ranjan Maitra wrote: > > On Tue, 31 Mar 2020 19:41:58 +1300 Peter wrote: > > > >> On 31/03/20 5:42 pm, Bob Proulx wrote: > >>> The "$vpn" part is a variable was simply a pl

Re: delaying postfix until/unless VPN is up/connected

2020-04-16 Thread Ranjan Maitra
Wietse > Hi, Sorry to bring this up after a while, but I have been trying this code, but seem to hit a syntax error: line 10: [: : integer expression expected Line10: is the following line: *UP*) if [ "$prev" -ne up ] Any help? Many thanks, Ranjan

Re: delaying postfix until/unless VPN is up/connected

2020-04-17 Thread Ranjan Maitra
On Fri, 17 Apr 2020 08:05:28 + Gregory Heytings wrote: > > Ranjan Maitra: > > > >> Wietse Venema: > >> > >> Corrected code follows (missing do/done). > >> > >> Save to file, chmod +x name-of-file, don't run this script from cron

Re: delaying postfix until/unless VPN is up/connected

2020-04-17 Thread Ranjan Maitra
On Fri, 17 Apr 2020 15:21:49 +0200 Jan Ceuleers wrote: > On 17/04/2020 15:08, Ranjan Maitra wrote: > > Btw, for me, when ifconfig is DOWN, I do not get a down. > > ifconfig -a fixes that. > Sorry, but not for me: When down: $ifconfig -a | egrep 'UP|DOWN' xxx

Re: Postfix "IPv6-only" - experience/recommendation question

2020-05-12 Thread Ranjan Maitra
a valid rDNS as spam, and perhaps more IPv6 hosts do not do their > rDNS correctly? > What is a valid rDNS? How is it set? Ranjan

postfix: Undelivered Mail Returned to Sender error

2020-07-01 Thread Ranjan Maitra
ase contact our helpdesk via telephone at or via email. I am not sure what to do here, but would appreciate any advice. What I do not understand also is if I use VPN, why does it go through the ISP server which is blacklisted? Happy to provide needed information. Many thanks and best wishes, Ranjan

strange issue with postfix

2020-10-01 Thread Ranjan Maitra
-mail from my home machine. What could be wrong, and how may I fix it? Any suggestions? Many thanks and best wishes, Ranjan

Re: strange issue with postfix

2020-10-01 Thread Ranjan Maitra
me (the same machine). Many thanks, Ranjan On Thu, 1 Oct 2020 22:04:26 +0300 IL Ka wrote: > Hi. > I'd start with checking your logs (i.e. "/var/log/maillog") > > On Thu, Oct 1, 2020 at 10:01 PM Ranjan Maitra wrote: > > > Hi, > > > > I hav

Re: strange issue with postfix

2020-10-01 Thread Ranjan Maitra
On Thu, 1 Oct 2020 15:39:55 -0400 "Demi M. Obenour" wrote: > On 2020-10-01 15:18, Ranjan Maitra wrote: > > Thanks, very much. So when I hit "Send" on sylpheed, it goes on a tailspin, > > and says: Connecting to SMTP server: localhost > > > > Look

Re: strange issue with postfix

2020-10-02 Thread Ranjan Maitra
Hi, Thanks, I am not very knowledgeable with regard to postfix being a simple user, so do you mind letting me/us know what you had to fix? It is kind of forbidding to me. Thanks again and best wishes, Ranjan On Fri, 2 Oct 2020 15:52:34 +0200 Erik Thuning wrote: > Thank you! I had t

Using postfix with 2FA on Office 365

2020-10-03 Thread Ranjan Maitra
I thought that I would ask here: https://gitlab.com/muttmua/mutt/-/blob/master/contrib/mutt_oauth2.py.README Otherwise, I think that I will start using mutt since I have to have this work to not get my e-mail sending get blocked. Many thanks and best wishes, Ranjan

use postfix over ssh

2020-10-10 Thread Ranjan Maitra
through the ssh tunnel to my office machine (sorry for my non-technical description). How do I do this, if possible? Many thanks again for your time in reading this, and thanks in advance for any suggestions! Best wishes, Ranjan

Re: use postfix over ssh

2020-10-10 Thread Ranjan Maitra
On Sat, 10 Oct 2020 23:36:28 +0200 Jaroslaw Rafa wrote: > Dnia 10.10.2020 o godz. 16:04:30 Ranjan Maitra pisze: > > > > I have postfix running on both my home and office machines. I am able to > > send e-mail from my office machine (that uses my employer's mailhub, etc)

Re: use postfix over ssh

2020-10-10 Thread Ranjan Maitra
Hi Viktor, Thanks for your response! On Sat, 10 Oct 2020 19:31:09 -0400 Viktor Dukhovni wrote: > On Sat, Oct 10, 2020 at 04:04:30PM -0500, Ranjan Maitra wrote: > > > I have postfix running on both my home and office machines. I am able > > to send e-mail from my office mac

Re: use postfix over ssh

2020-10-12 Thread Ranjan Maitra
My apologies: were there any suggestions regarding what i should do? Thanks, Ranjan On Sat, 10 Oct 2020 20:07:33 -0500 Ranjan Maitra wrote: > Hi Viktor, > > Thanks for your response! > > On Sat, 10 Oct 2020 19:31:09 -0400 Viktor Dukhovni > wrote: > > > On Sat,

Re: use postfix over ssh

2020-10-12 Thread Ranjan Maitra
On Mon, 12 Oct 2020 21:19:38 -0400 Viktor Dukhovni wrote: > On Mon, Oct 12, 2020 at 08:09:45PM -0500, Ranjan Maitra wrote: > > > My apologies: were there any suggestions regarding what i should do? > > Find out more about the VPN. Nobody on this list can do that. Does