Re: Large ISP which use Postfix
Zitat von Stan Hoeppner s...@hardwarefreak.com: On 7/14/2011 6:58 AM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? It may be worth noting that the open source Zimbra integrated messaging suite uses Postfix as its MTA component. Some noteworthy Postfix using sites in the USA: 1. Stanford University's 4 MX hosts run Postfix http://www.stanford.edu One of the leading research universities in US Cisco Systems powers the internet and was born at Stanford: http://www.stanford.edu/group/wellspring/cisco_spotlight.html Current enrollment 19,535 Graduate students 12,595 mx2.stanford.edu. 1800IN A 171.67.219.72 mx3.stanford.edu. 1800IN A 171.67.219.73 mx4.stanford.edu. 1800IN A 171.67.219.74 mx1.stanford.edu. 1800IN A 171.67.219.71 2. NASA's 6 MX hosts run Postfix http://www.nasa.gov ndmsnpf02.ndc.nasa.gov. 600 IN A 198.117.0.122 ndjsnpf03.ndc.nasa.gov. 600 IN A 198.117.1.123 ndjsnpf01.ndc.nasa.gov. 600 IN A 198.117.1.121 ndmsnpf03.ndc.nasa.gov. 600 IN A 198.117.0.123 ndmsnpf01.ndc.nasa.gov. 600 IN A 198.117.0.121 ndjsnpf02.ndc.nasa.gov. 600 IN A 198.117.1.122 At least one of the big player in computer market is also using Postfix: goog@web:~# telnet smtp.hp.com 25 Trying 15.193.32.72... Connected to smtp.hp.com. Escape character is '^]'. 220 g6t0181.atlanta.hp.com ESMTP Postfix EHLO kwsoft.de 250-g6t0181.atlanta.hp.com 250-PIPELINING 250-SIZE 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN help 502 5.5.2 Error: command not recognized quit 221 2.0.0 Bye Connection closed by foreign host. goog@web:~# It should be obvious by now that many organisations around the world which value e-mail are using Postfix. Regards Andreas smime.p7s Description: S/MIME Cryptographic Signature
Re: Σχετ: Large ISP which use Postfix
Peter Tselios wrote: Do you work for them? Because, the server does not report it's name :( T-Online in Hungary uses Postfix. $ host t-online.hu t-online.hu has address 84.2.36.211 t-online.hu mail is handled by 10 mx.t-online.hu. $ telnet mx.t-online.hu 25 Trying 84.2.44.11... Connected to mx.t-online.hu. Escape character is '^]'. 220 mx04a.mail.t-online.hu ESMTP help 502 5.5.2 Error: command not recognized quit 221 2.0.0 Bye Connection closed by foreign host. Hi Peter, No, I don't work for them. The error message after the help command confirms the fact that this is postfix. Referece: http://www.mail-archive.com/postfix-users@postfix.org/msg36298.html HTH, Mikael
Re: Large ISP which use Postfix
On 7/14/2011 5:55 PM, Stan Hoeppner wrote: On 7/14/2011 6:58 AM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? It may be worth noting that the open source Zimbra integrated messaging suite uses Postfix as its MTA component. Some noteworthy Postfix using sites in the USA: 1. Stanford University's 4 MX hosts run Postfix http://www.stanford.edu One of the leading research universities in US Cisco Systems powers the internet and was born at Stanford: http://www.stanford.edu/group/wellspring/cisco_spotlight.html Current enrollment 19,535 Graduate students 12,595 mx2.stanford.edu. 1800IN A 171.67.219.72 mx3.stanford.edu. 1800IN A 171.67.219.73 mx4.stanford.edu. 1800IN A 171.67.219.74 mx1.stanford.edu. 1800IN A 171.67.219.71 2. NASA's 6 MX hosts run Postfix http://www.nasa.gov ndmsnpf02.ndc.nasa.gov. 600 IN A 198.117.0.122 ndjsnpf03.ndc.nasa.gov. 600 IN A 198.117.1.123 ndjsnpf01.ndc.nasa.gov. 600 IN A 198.117.1.121 ndmsnpf03.ndc.nasa.gov. 600 IN A 198.117.0.123 ndmsnpf01.ndc.nasa.gov. 600 IN A 198.117.0.121 ndjsnpf02.ndc.nasa.gov. 600 IN A 198.117.1.122 Some additions: 3. United States Navy. The US Navy currently has ~333,000 personnel. 3 MX hosts for navy.mil all running Postfix mx13.nmci.navy.mil. 600 IN A 138.162.5.133 mx15.nmci.navy.mil. 600 IN A 138.163.129.68 mx14.nmci.navy.mil. 600 IN A 138.163.1.68 4. Embarq and CenturylTel merged to become CenturyLink. In 2008 they had a combined 2 million subscribers. Synacor provides all customer email services and uses the eCelerity MTA, which is based on Postfix. Today CenturyLink is likely the 10th largest US ISP based on subscriber count. mailrelay.embarq.synacor.com. 300 INA 208.47.184.3 5. Windstream.net, 12th largest US ISP, 1 million subscribers in 2008 mx01.windstream.net.900 IN A 162.39.147.49 6. MessageLabs. According to this press release: http://tinyurl.com/6gxbpfw MessageLabs was running eCelerity across 1300 servers in 2006 eCelerity is now a Message Systems, Inc concern embedded within their Message Central product. cluster6a.eu.messagelabs.com. 900 INA 193.109.254.3 cluster6a.eu.messagelabs.com. 900 INA 85.158.136.67 cluster6.eu.messagelabs.com. 900 IN A 85.158.136.67 cluster6a.eu.messagelabs.com. 900 INA 85.158.136.83 cluster6.eu.messagelabs.com. 900 IN A 195.245.230.51 cluster6.eu.messagelabs.com. 900 IN A 193.109.254.3 cluster6a.eu.messagelabs.com. 900 INA 195.245.230.83 cluster6.eu.messagelabs.com. 900 IN A 85.158.136.51 cluster6a.eu.messagelabs.com. 900 INA 85.158.136.51 cluster6.eu.messagelabs.com. 900 IN A 195.245.230.83 cluster6a.eu.messagelabs.com. 900 INA 195.245.231.196 cluster6.eu.messagelabs.com. 900 IN A 85.158.136.83 In this case it appears they've replaced the 500 5.5.2 unrecognized command error with with a custom message: 214 See http://www.messagelabs.com/support Some of the Synacor systems do this as well, while others have the standard Postfix return message. Viktor how much email does MessageLabs handle? I know it's big but I have no direct knowledge of their numbers. -- Stan
Re: Large ISP which use Postfix
Stan Hoeppner: In this case it appears they've replaced the 500 5.5.2 unrecognized command error with with a custom message: 214 See http://www.messagelabs.com/support Some of the Synacor systems do this as well, while others have the standard Postfix return message. Messagelabs replies with: 502 unimplemented (#5.5.1) That looks like qmail to me. No other MTA that I know of implements enhanced status codes by putting them as (#X.Y.Z) inside free text. Wietse
Re: Large ISP which use Postfix
2011/7/14 Peter Tselios s91...@yahoo.gr: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? Thanks Peter Maybe you could try to use smtpscan[1] to guess which mail software is used on remote servers you want. HTH [1]: http://packetstormsecurity.org/search/files/?q=smtpscan
Re: Large ISP which use Postfix
On 7/15/2011 8:46 AM, Wietse Venema wrote: Stan Hoeppner: In this case it appears they've replaced the 500 5.5.2 unrecognized command error with with a custom message: 214 See http://www.messagelabs.com/support Some of the Synacor systems do this as well, while others have the standard Postfix return message. Messagelabs replies with: 502 unimplemented (#5.5.1) That looks like qmail to me. No other MTA that I know of implements enhanced status codes by putting them as (#X.Y.Z) inside free text. Telnet'ing the first two Messagelabs MX hosts in the list I provided, entering 'help' returns: 214 See http://www.messagelabs.com/support Maybe I'm doing something wrong. -- Stan
RE: Large ISP which use Postfix
-Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Frank Bonnet Sent: Thursday, July 14, 2011 10:08 PM To: postfix-users@postfix.org Subject: Re: Large ISP which use Postfix Anyone knows what Google or Hotmail use ? I'm over 90% sure they each rolled their own.
Re: Large ISP which use Postfix
On 7/15/2011 5:55 PM, Murray S. Kucherawy wrote: -Original Message- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Frank Bonnet Sent: Thursday, July 14, 2011 10:08 PM To: postfix-users@postfix.org Subject: Re: Large ISP which use Postfix Anyone knows what Google or Hotmail use ? I'm over 90% sure they each rolled their own. Hotmail uses Microsoft's SMTP server. Read about the conversion from BSD to Windows after Microsoft bought Hotmail: http://technet.microsoft.com/en-us/library/bb496985.aspx -- Stan
Re: Large ISP which use Postfix
On 7/15/2011 6:01 PM, Stan Hoeppner wrote: A. Newer versions of eCelerity use a different MTA B. They changed the code to make the help message user configurable C. Stan didn't read the return codes thoroughly enough. I believe the correct answer is C. :( -- Stan
Re: Large ISP which use Postfix
MessageLabs do not respond with postfix-ish error messages. I mentioned earlier that they reply with a distinct qmail-ish twang when I send an unimplemented command: 220 server-6.tower-36.messagelabs.com ESMTP foobar 502 unimplemented (#5.5.1) No other MTA that I know of implements enhanced status codes by putting them as (#X.Y.Z) within free text. Wietse
Large ISP which use Postfix
Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? Thanks Peter
Re: Large ISP which use Postfix
Simple. 1. List the mail servers of the large ISPs in your country. 2. do a dig yourispdomainnamewithoutwww mx This will give you the mail exchange records or better known as the mail server domain names 3. Do telnet mailserverdomainname 25 In that you may get postfix in the banner. (however some may hide the mail server type used) On 7/14/2011 5:28 PM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? Thanks Peter
Re: Large ISP which use Postfix
Peter Tselios: Hallo, -___ I need to prepare a presentation for my company because we plan to deplo -y a new mail system. I need to know the names of some medium to large ISPs t -hat uses Postfix as their SMTP server. Do you know where I can find that inf -ormation? These are a few large ISPs known to run Postfix (I don't maintain a list of Postfix users). I know that these run Postfix because of a request for a feature, or for performance improvement. uol.com.br aol.com The SMTP server may not say Postfix, but the error responses are exactly those from Postfix. Wietse
Re: Large ISP which use Postfix
I am almost 100% sure from bounce backs and certain errors I have seen in the past that RIM (here in Canada) the folks that run the Blackberry network, use postfix. AK Sent from my BlackBerry device on the Rogers Wireless Network
Σχετ: Large ISP which use Postfix
I did that. But the are sendmail fans :) I need postfix fans/users! P. Απο: Janantha Marasinghe janan...@janantha.net Προς: Peter Tselios s91...@yahoo.gr Κοιν.: postfix-users@postfix.org postfix-users@postfix.org Στάλθηκε: 3:00 μ.μ. Πέμπτη, 14 Ιουλίου 2011 Θεμα: Re: Large ISP which use Postfix Simple. 1. List the mail servers of the large ISPs in your country. 2. do a dig yourispdomainnamewithoutwww mx This will give you the mail exchange records or better known as the mail server domain names 3. Do telnet mailserverdomainname 25 In that you may get postfix in the banner. (however some may hide the mail server type used) On 7/14/2011 5:28 PM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? Thanks Peter
Re: Large ISP which use Postfix
* Peter Tselios s91...@yahoo.gr: I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? We run Postfix at python.org: http://mail.python.org/cgi-bin/mailgraph.cgi Can you post some of your requirements? We might be able to comment on that and give an estimate of what would need to be done. p@rick -- All technical questions asked privately will be automatically answered on the list and archived for public access unless privacy is explicitely required and justified. saslfinger (debugging SMTP AUTH): http://postfix.state-of-mind.de/patrick.koetter/saslfinger/
Re: Large ISP which use Postfix
Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? T-Online in Hungary uses Postfix. $ host t-online.hu t-online.hu has address 84.2.36.211 t-online.hu mail is handled by 10 mx.t-online.hu. $ telnet mx.t-online.hu 25 Trying 84.2.44.11... Connected to mx.t-online.hu. Escape character is '^]'. 220 mx04a.mail.t-online.hu ESMTP help 502 5.5.2 Error: command not recognized quit 221 2.0.0 Bye Connection closed by foreign host. HTH, M.
Re: Large ISP which use Postfix
On 14/07/11 9:58 PM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? Connect.com.au in Australia (now a division of AAPT) has been running Postfix for many years. Mainly because of the virtual domain support dating back to the 1.x series. Regards, Ben signature.asc Description: OpenPGP digital signature
Re: Large ISP which use Postfix
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 | On 14/07/11 9:58 PM, Peter Tselios wrote: | Hallo, | I need to prepare a presentation for my company because we plan | to deploy a new mail system. I need to know the names of some medium | to large ISPs that uses Postfix as their SMTP server. Do you know | where I can find that information? Does a university with @100k mailboxes qualify as medium size? If so, we do run Postfix (several instances of it) as SMTP server. And I know of several similar sized others in Spain that also do. - -- Victoriano Giralt Systems Manager Central ICT Services University of Malaga SPAIN - - A: Yes. | Q: Are you sure ? | A: Because it reverses the logical flow of conversation. | Q: Why is top posting annoying in email ? -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFOHw72V6+mDjj1PTgRAhgvAKC6xP5S0k54aZBfOJoxUwqmkdiClQCdE8Bk aFzllPfL4RXmgkDdXKr8VFY= =TPe8 -END PGP SIGNATURE-
Σχετ: Large ISP which use Postfix
Well, I will be based on my current hardware setup, because it seems to be OK. I have a 25%-50% utilization on the relay servers and nearly 100% on some really old SUN Sparc that I will replace with newer Xeons. Anyway, in case the upper management approve that, I will post some more info. I really thank you for your offer. P. Απο: Patrick Ben Koetter lt;p...@state-of-mind.degt; Προς: postfix-users@postfix.org Στάλθηκε: 3:53 μ.μ. Πέμπτη, 14 Ιουλίου 2011 Θεμα: Re: Large ISP which use Postfix * Peter Tselios lt;s91...@yahoo.grgt;: gt; I need to prepare a presentation for my company because we plan to gt; deploy a new mail system. I need to know the names of some medium to large gt; ISPs that uses Postfix as their SMTP server. Do you know where I can find gt; that information? We run Postfix at python.org: lt;http://mail.python.org/cgi-bin/mailgraph.cgigt; Can you post some of your requirements? We might be able to comment on that and give an estimate of what would need to be done. p@rick -- All technical questions asked privately will be automatically answered on the list and archived for public access unless privacy is explicitely required and justified. saslfinger (debugging SMTP AUTH): lt;http://postfix.state-of-mind.de/patrick.koetter/saslfinger/gt;
Re: Large ISP which use Postfix
On 7/14/2011 6:58 AM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? It may be worth noting that the open source Zimbra integrated messaging suite uses Postfix as its MTA component. Some noteworthy Postfix using sites in the USA: 1. Stanford University's 4 MX hosts run Postfix http://www.stanford.edu One of the leading research universities in US Cisco Systems powers the internet and was born at Stanford: http://www.stanford.edu/group/wellspring/cisco_spotlight.html Current enrollment 19,535 Graduate students 12,595 mx2.stanford.edu. 1800IN A 171.67.219.72 mx3.stanford.edu. 1800IN A 171.67.219.73 mx4.stanford.edu. 1800IN A 171.67.219.74 mx1.stanford.edu. 1800IN A 171.67.219.71 2. NASA's 6 MX hosts run Postfix http://www.nasa.gov ndmsnpf02.ndc.nasa.gov. 600 IN A 198.117.0.122 ndjsnpf03.ndc.nasa.gov. 600 IN A 198.117.1.123 ndjsnpf01.ndc.nasa.gov. 600 IN A 198.117.1.121 ndmsnpf03.ndc.nasa.gov. 600 IN A 198.117.0.123 ndmsnpf01.ndc.nasa.gov. 600 IN A 198.117.0.121 ndjsnpf02.ndc.nasa.gov. 600 IN A 198.117.1.122 I don't have time currently to research/confirm others, but there are many high profile and medium to high volume mail sites in the US running Postfix both at the edge and internally. Though the fact that AOL alone, which handles millions of emails per day, is using Postfix should provide ample backing to your proposal to use Postfix. These above are simply icing on the cake. -- Stan
Re: Large ISP which use Postfix
On Thu, Jul 14, 2011 at 05:55:42PM -0500, Stan Hoeppner wrote: Though the fact that AOL alone, which handles millions of emails per day, is using Postfix should provide ample backing to your proposal to use Postfix. These above are simply icing on the cake. Wrong order of magnitude. Large corporates handle millions a day with just a handful of Postfix servers and modest bandwidth requirements. AOL IIRC handles (or used to handle) over a billion messages a day. -- Viktor.
Re: Large ISP which use Postfix
Anyone knows what Google or Hotmail use ? Le 15/07/2011 00:55, Stan Hoeppner a écrit : On 7/14/2011 6:58 AM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? It may be worth noting that the open source Zimbra integrated messaging suite uses Postfix as its MTA component. Some noteworthy Postfix using sites in the USA: 1. Stanford University's 4 MX hosts run Postfix http://www.stanford.edu One of the leading research universities in US Cisco Systems powers the internet and was born at Stanford: http://www.stanford.edu/group/wellspring/cisco_spotlight.html Current enrollment 19,535 Graduate students 12,595 mx2.stanford.edu. 1800IN A 171.67.219.72 mx3.stanford.edu. 1800IN A 171.67.219.73 mx4.stanford.edu. 1800IN A 171.67.219.74 mx1.stanford.edu. 1800IN A 171.67.219.71 2. NASA's 6 MX hosts run Postfix http://www.nasa.gov ndmsnpf02.ndc.nasa.gov. 600 IN A 198.117.0.122 ndjsnpf03.ndc.nasa.gov. 600 IN A 198.117.1.123 ndjsnpf01.ndc.nasa.gov. 600 IN A 198.117.1.121 ndmsnpf03.ndc.nasa.gov. 600 IN A 198.117.0.123 ndmsnpf01.ndc.nasa.gov. 600 IN A 198.117.0.121 ndjsnpf02.ndc.nasa.gov. 600 IN A 198.117.1.122 I don't have time currently to research/confirm others, but there are many high profile and medium to high volume mail sites in the US running Postfix both at the edge and internally. Though the fact that AOL alone, which handles millions of emails per day, is using Postfix should provide ample backing to your proposal to use Postfix. These above are simply icing on the cake.
Σχετ: Large ISP which use Postfix
That would be good to know, just for statistical reasons Just to note, that I am stunned from your prompt answers, guys thank you all! P. Απο: Frank Bonnet f.bon...@esiee.fr Προς: postfix-users@postfix.org Στάλθηκε: 8:08 π.μ. Παρασκευή, 15 Ιουλίου 2011 Θεμα: Re: Large ISP which use Postfix Anyone knows what Google or Hotmail use ? Le 15/07/2011 00:55, Stan Hoeppner a écrit : On 7/14/2011 6:58 AM, Peter Tselios wrote: Hallo, I need to prepare a presentation for my company because we plan to deploy a new mail system. I need to know the names of some medium to large ISPs that uses Postfix as their SMTP server. Do you know where I can find that information? It may be worth noting that the open source Zimbra integrated messaging suite uses Postfix as its MTA component. Some noteworthy Postfix using sites in the USA: 1. Stanford University's 4 MX hosts run Postfix http://www.stanford.edu One of the leading research universities in US Cisco Systems powers the internet and was born at Stanford: http://www.stanford.edu/group/wellspring/cisco_spotlight.html Current enrollment 19,535 Graduate students 12,595 mx2.stanford.edu. 1800 IN A 171.67.219.72 mx3.stanford.edu. 1800 IN A 171.67.219.73 mx4.stanford.edu. 1800 IN A 171.67.219.74 mx1.stanford.edu. 1800 IN A 171.67.219.71 2. NASA's 6 MX hosts run Postfix http://www.nasa.gov ndmsnpf02.ndc.nasa.gov. 600 IN A 198.117.0.122 ndjsnpf03.ndc.nasa.gov. 600 IN A 198.117.1.123 ndjsnpf01.ndc.nasa.gov. 600 IN A 198.117.1.121 ndmsnpf03.ndc.nasa.gov. 600 IN A 198.117.0.123 ndmsnpf01.ndc.nasa.gov. 600 IN A 198.117.0.121 ndjsnpf02.ndc.nasa.gov. 600 IN A 198.117.1.122 I don't have time currently to research/confirm others, but there are many high profile and medium to high volume mail sites in the US running Postfix both at the edge and internally. Though the fact that AOL alone, which handles millions of emails per day, is using Postfix should provide ample backing to your proposal to use Postfix. These above are simply icing on the cake.
