Re: [qmailtoaster] Re: Slowness in smtp
Hi YongSan, I tested to connect to your server on port 25. It takes about 2-3 min to get the greeting-banner (220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP) For me that looks like your server takes ages to resolve my senders reverse dns. Did you configure the forwarders on your caching dns server on localhost? How long does it take to resolve f.ex. 122.175.72.62 ? Some times ago I had the same behaviour on a clients qmail-box where the config. of bind disallowed querys from localhost (127.0.0.1). Andreas Am Montag, 12. Juli 2010 05:29:44 schrieb Poh Yong Hwang: Hi, It should not be my windows as i have ask many people to try(around 10) and all face the same issue with slowness in smtp. I have remove the default zen.spamhaues on the blacklist file and it is still slow.. YongSan On Mon, Jul 12, 2010 at 11:06 AM, South Computers i...@southcomputers.comwrote: For a quick test to see if it's your dns at the windoze box, try adding your toaster to the hosts file. Typically win boxes check the hosts file before dns. Also, check the blacklists on your toaster. You may have a slow dnsbl in there. Poh Yong Hwang wrote: Hi, Here is my resolv.conf : search mail.popular.com.sg http://mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net http://centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg http://mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.net mailto: e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com http://www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com http://qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com mailto:qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com mailto:qmailtoaster-list-h...@qmailtoaster.com - Qmailtoaster is sponsored by Vickers Consulting Group ( www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail:
Re: [qmailtoaster] Re: Slowness in smtp
Hi, I tried the following on the mail server itself and i got the reply immediately. [r...@mail init.d]# nslookup 122.175.72.62 Server: 127.0.0.1 Address:127.0.0.1#53 Non-authoritative answer: 62.72.175.122.in-addr.arpa name = Telemedia-AP-dynamic-062.72.175.122.airtelbroadband.in. Authoritative answers can be found from: It seems that i have djbdns install rather than BIND for my qmailtoaster. Can i check how can i configure the forwarders on my caching server? The mail server setup is by default according to the Qmailtoaster installation guide. Thanks YongSan On Mon, Jul 12, 2010 at 2:02 PM, Andreas Galatis a...@unet.de wrote: Hi YongSan, I tested to connect to your server on port 25. It takes about 2-3 min to get the greeting-banner (220 localhost.localdomainhe - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP) For me that looks like your server takes ages to resolve my senders reverse dns. Did you configure the forwarders on your caching dns server on localhost? How long does it take to resolve f.ex. 122.175.72.62 ? Some times ago I had the same behaviour on a clients qmail-box where the config. of bind disallowed querys from localhost (127.0.0.1). Andreas Am Montag, 12. Juli 2010 05:29:44 schrieb Poh Yong Hwang: Hi, It should not be my windows as i have ask many people to try(around 10) and all face the same issue with slowness in smtp. I have remove the default zen.spamhaues on the blacklist file and it is still slow.. YongSan On Mon, Jul 12, 2010 at 11:06 AM, South Computers i...@southcomputers.comwrote: For a quick test to see if it's your dns at the windoze box, try adding your toaster to the hosts file. Typically win boxes check the hosts file before dns. Also, check the blacklists on your toaster. You may have a slow dnsbl in there. Poh Yong Hwang wrote: Hi, Here is my resolv.conf : search mail.popular.com.sg http://mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net http://centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg http://mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.netmailto: e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com http://www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com http://qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com
Re: [qmailtoaster] Re: Slowness in smtp
On 07/12/2010 02:24 AM, Poh Yong Hwang wrote: Hi, I tried the following on the mail server itself and i got the reply immediately. [r...@mail init.d]# nslookup 122.175.72.62 Server: 127.0.0.1 Address:127.0.0.1#53 Non-authoritative answer: 62.72.175.122.in-addr.arpa name = Telemedia-AP-dynamic-062.72.175.122.airtelbroadband.in http://Telemedia-AP-dynamic-062.72.175.122.airtelbroadband.in. Authoritative answers can be found from: It seems that i have djbdns install rather than BIND for my qmailtoaster. Can i check how can i configure the forwarders on my caching server? The mail server setup is by default according to the Qmailtoaster installation guide. Thanks YongSan On Mon, Jul 12, 2010 at 2:02 PM, Andreas Galatis a...@unet.de mailto:a...@unet.de wrote: Hi YongSan, I tested to connect to your server on port 25. It takes about 2-3 min to get the greeting-banner (220 localhost.localdomainhe - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP) You have a DNS lookup problem. When I tried to telnet to your SMTP port, it took 1 minute and 42 seconds to connect: [j...@jake-lapbox ~]$ time telnet mail.popular.com.sg 25 Trying 117.120.3.103... Connected to mail.popular.com.sg. Escape character is '^]'. 220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP quit 221 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server Connection closed by foreign host. real1m42.329s user0m0.001s sys0m0.006s I entered quit within 1-2 seconds of receiving your banner. What is the contents of your /var/qmail/control/blacklists file? Are you using spamdyke? What does your tcp.smtp file look like? What is being logged in your smtp log file?
Re: [qmailtoaster] Re: Slowness in smtp
Hi, It seems that if i use port 587 it does not have the slowness issue.. [r...@cp root]# time telnet mail.popular.com.sg 25 Trying 117.120.3.103... Connected to mail.popular.com.sg (117.120.3.103). Escape character is '^]'. 220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP quit 221 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server Connection closed by foreign host. real2m14.788s user0m0.000s sys 0m0.000s [r...@cp root]# time telnet mail.popular.com.sg 587 Trying 117.120.3.103... Connected to mail.popular.com.sg (117.120.3.103). Escape character is '^]'. 220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP quit 221 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server Connection closed by foreign host. real0m5.913s user0m0.000s sys 0m0.010s [r...@cp root]# Could it still be DNS issue since the slowness does not show up in port 587? Thanks YongSan On Mon, Jul 12, 2010 at 2:32 PM, Jake Vickers j...@qmailtoaster.com wrote: On 07/12/2010 02:24 AM, Poh Yong Hwang wrote: Hi, I tried the following on the mail server itself and i got the reply immediately. [r...@mail init.d]# nslookup 122.175.72.62 Server: 127.0.0.1 Address:127.0.0.1#53 Non-authoritative answer: 62.72.175.122.in-addr.arpa name = Telemedia-AP-dynamic-062.72.175.122.airtelbroadband.in. Authoritative answers can be found from: It seems that i have djbdns install rather than BIND for my qmailtoaster. Can i check how can i configure the forwarders on my caching server? The mail server setup is by default according to the Qmailtoaster installation guide. Thanks YongSan On Mon, Jul 12, 2010 at 2:02 PM, Andreas Galatis a...@unet.de wrote: Hi YongSan, I tested to connect to your server on port 25. It takes about 2-3 min to get the greeting-banner (220 localhost.localdomainhe - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP) You have a DNS lookup problem. When I tried to telnet to your SMTP port, it took 1 minute and 42 seconds to connect: [j...@jake-lapbox ~]$ time telnet mail.popular.com.sg 25 Trying 117.120.3.103... Connected to mail.popular.com.sg. Escape character is '^]'. 220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP quit 221 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server Connection closed by foreign host. real1m42.329s user0m0.001s sys0m0.006s I entered quit within 1-2 seconds of receiving your banner. What is the contents of your /var/qmail/control/blacklists file? Are you using spamdyke? What does your tcp.smtp file look like? What is being logged in your smtp log file?
Re: [qmailtoaster] Re: Slowness in smtp
It looks like you have problems solving your local name (the name of server where tcpserver is running). Check your local name in DNS, and add -l name to your tcpserver command line. Tonino Poh Yong Hwang ha scritto: Hi, Here is my resolv.conf : search mail.popular.com.sg http://mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net http://centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg http://mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.net mailto:e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com http://www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com http://qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com mailto:qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com mailto:qmailtoaster-list-h...@qmailtoaster.com -- in...@zioniInterazioni di Antonio Nati http://www.interazioni.it to...@interazioni.it
Re: [qmailtoaster] Re: Slowness in smtp
On 07/12/2010 02:48 AM, Poh Yong Hwang wrote: Hi, It seems that if i use port 587 it does not have the slowness issue.. [r...@cp root]# time telnet mail.popular.com.sg http://mail.popular.com.sg 25 Trying 117.120.3.103... Connected to mail.popular.com.sg http://mail.popular.com.sg (117.120.3.103). Escape character is '^]'. 220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP quit 221 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server Connection closed by foreign host. real2m14.788s user0m0.000s sys 0m0.000s [r...@cp root]# time telnet mail.popular.com.sg http://mail.popular.com.sg 587 Trying 117.120.3.103... Connected to mail.popular.com.sg http://mail.popular.com.sg (117.120.3.103). Escape character is '^]'. 220 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP quit 221 localhost.localdomain - Welcome to Qmail Toaster Ver. 1.3 SMTP Server Connection closed by foreign host. real0m5.913s user0m0.000s sys 0m0.010s [r...@cp root]# Could it still be DNS issue since the slowness does not show up in port 587? Port 587 skips the blacklists check, so the /var/qmail/control/blacklists file is not processed. Do your clients use port 25 or 587? If they're using port 25, change them to 587 but you will still need to fix your blacklists to lower the time before mails are allowed to be received. And we still have not seen any log files, so this is like installing a network card in the dark.
[qmailtoaster] Re: Slowness in smtp
Is sounds as though there is something amiss in your djbdns configuration. If you really want to use djbdns for some reason, I've found The Linux Cookbook by Carla Schroeder to be a good reference for that. I don't presently have my copy nearby. I've found that it's much easier to use the caching-nameserver package if you're using CentOS. Simply remove the djbdns package, then install caching-nameserver: # rpm -e djbdns # yum install caching-nameserver I expect that will fix things up for you. -- -Eric 'shubes' Poh Yong Hwang wrote: Hi, I tried the following on the mail server itself and i got the reply immediately. [r...@mail init.d]# nslookup 122.175.72.62 Server: 127.0.0.1 Address:127.0.0.1#53 Non-authoritative answer: 62.72.175.122.in-addr.arpa name = Telemedia-AP-dynamic-062.72.175.122.airtelbroadband.in http://Telemedia-AP-dynamic-062.72.175.122.airtelbroadband.in. Authoritative answers can be found from: It seems that i have djbdns install rather than BIND for my qmailtoaster. Can i check how can i configure the forwarders on my caching server? The mail server setup is by default according to the Qmailtoaster installation guide. Thanks YongSan On Mon, Jul 12, 2010 at 2:02 PM, Andreas Galatis a...@unet.de mailto:a...@unet.de wrote: Hi YongSan, I tested to connect to your server on port 25. It takes about 2-3 min to get the greeting-banner (220 localhost.localdomainhe - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP) For me that looks like your server takes ages to resolve my senders reverse dns. Did you configure the forwarders on your caching dns server on localhost? How long does it take to resolve f.ex. 122.175.72.62 ? Some times ago I had the same behaviour on a clients qmail-box where the config. of bind disallowed querys from localhost (127.0.0.1). Andreas Am Montag, 12. Juli 2010 05:29:44 schrieb Poh Yong Hwang: Hi, It should not be my windows as i have ask many people to try(around 10) and all face the same issue with slowness in smtp. I have remove the default zen.spamhaues on the blacklist file and it is still slow.. YongSan On Mon, Jul 12, 2010 at 11:06 AM, South Computers i...@southcomputers.com mailto:i...@southcomputers.comwrote: For a quick test to see if it's your dns at the windoze box, try adding your toaster to the hosts file. Typically win boxes check the hosts file before dns. Also, check the blacklists on your toaster. You may have a slow dnsbl in there. Poh Yong Hwang wrote: Hi, Here is my resolv.conf : search mail.popular.com.sg http://mail.popular.com.sg http://mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net http://centralops.net http://centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg http://mail.popular.com.sg http://mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.net mailto:e...@shubes.net mailto: e...@shubes.net mailto:e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36
[qmailtoaster] Re: Slowness in smtp
DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: Slowness in smtp
Hi, Here is my resolv.conf : search mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group ( www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: Slowness in smtp
For a quick test to see if it's your dns at the windoze box, try adding your toaster to the hosts file. Typically win boxes check the hosts file before dns. Also, check the blacklists on your toaster. You may have a slow dnsbl in there. Poh Yong Hwang wrote: Hi, Here is my resolv.conf : search mail.popular.com.sg http://mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net http://centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg http://mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.net mailto:e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com http://www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com http://qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com mailto:qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com mailto:qmailtoaster-list-h...@qmailtoaster.com - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
Re: [qmailtoaster] Re: Slowness in smtp
Hi, It should not be my windows as i have ask many people to try(around 10) and all face the same issue with slowness in smtp. I have remove the default zen.spamhaues on the blacklist file and it is still slow.. YongSan On Mon, Jul 12, 2010 at 11:06 AM, South Computers i...@southcomputers.comwrote: For a quick test to see if it's your dns at the windoze box, try adding your toaster to the hosts file. Typically win boxes check the hosts file before dns. Also, check the blacklists on your toaster. You may have a slow dnsbl in there. Poh Yong Hwang wrote: Hi, Here is my resolv.conf : search mail.popular.com.sg http://mail.popular.com.sg nameserver 127.0.0.1 nameserver 165.21.83.88 nameserver 165.21.100.88 The slowness occurs on the time that the message took to leave Outlook outbound queue. If we do a email dossier check at centralops.net http://centralops.net, it always get timeout while connecting to our mail server. One of the domain i have in this mail server is mail.popular.com.sg http://mail.popular.com.sg Please advise. Thanks YongSan On Mon, Jul 12, 2010 at 3:54 AM, Eric Shubert e...@shubes.net mailto: e...@shubes.net wrote: DNS is often the culprit with sluggish performance, so Andreas is right. Outlook doesn't usually exhibit slowness. Because it has its own Outbound queue, it appears to the user that the message has been sent before the submission/smtp server is even contacted. I'd like to know where you're seeing the slowness. Are you counting the time it takes for the message to reach its destination? The time it takes to leave Outlook's Outbound queue? What messages are you seeing in the send queue that correspond to the slow message(s)? # qmlog send It's possible that the message is being requeued due to graylisting by the recipient's server. There are many possibilities. -- -Eric 'shubes' Andreas Galatis wrote: Hi Yongsan, I think 1st thing to lookup is dns-lookup speed of your server. Do you have a cahing-nameserver installed? What are your settings in resolve.conf? How is your connection to the internet (static, dynamic ip) Bye Andreas Am Sonntag, 11. Juli 2010 13:32:36 schrieb Poh Yong Hwang: Hi all, I have setup qmailtoaster and have an issue with sending out emails. Whenever I tried to send out emails, it gets very slow. Takes around 5 mins to send out an email using outlook. Please advise how should I troubleshoot this. Thanks. Yongsan --- - Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com http://www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com http://qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com mailto:qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com mailto:qmailtoaster-list-h...@qmailtoaster.com - Qmailtoaster is sponsored by Vickers Consulting Group ( www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! - Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: qmailtoaster-list-unsubscr...@qmailtoaster.com For additional commands, e-mail: qmailtoaster-list-h...@qmailtoaster.com
