Hi we have an installation with 2 exchange 2003 servers in one organisation. One being used as a front-end server. The main server (mailboxes/public folders) is protected with Symantec Mail Security 6.0 for Exchange. Every day (morning) mails seem to get stuck in the smtp queue from the frontend server to the mailbox server. If i do nothing the mails get through (almost all at once) after a couple of hours When i force the connection only a few or no mails get through. Basically all external mails being delivered to the front end server are delivered to the mailbox with a delay that can vary from 5 minutes up to 12 (or more) hours. No poblem with internal mails and mails being sent to the internet If i have a look at the event log of the front server I see that errors like the following are generated : Message delivery to the host '10.4.12.5' failed while delivering to the remote domain 'MAILSERVER.korfina.net' for the following reason: The connection was dropped by the remote host. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. any help/advices is greatly appreciated !!
brutus wrote: >Hi >we have an installation with 2 exchange 2003 servers in one >organisation. One being used as a front-end server. >The main server (mailboxes/public folders) is protected with Symantec >Mail Security 6.0 for Exchange. >Every day (morning) mails seem to get stuck in the smtp queue from the >frontend server to the mailbox server. If i do nothing the mails get >through (almost all at once) after a couple of hours >When i force the connection only a few or no mails get through. >Basically all external mails being delivered to the front end server >are delivered to the mailbox with a delay that can vary from 5 minutes >up to 12 (or more) hours. >No poblem with internal mails and mails being sent to the internet > >If i have a look at the event log of the front server I see that >errors like the following are generated : > >Message delivery to the host '10.4.12.5' failed while delivering to >the remote domain 'MAILSERVER.korfina.net' for the following reason: >The connection was dropped by the remote host. Is 10.4.12.5 your mailbox server? Is it your front-end server? Is korfina.net your email domain? Have you configured any of your SMTP Virtual Servers (or SMTP Connectors) with a smart host? -- Rich Matheisen MCSE+I, Exchange MVP MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm Don't send mail to this address mailto:h.pott@getronics.com Or to these, either: mailto:h.pott@pinkroccade.com mailto:melvin.mcphucknuckle@getronics.com mailto:melvin.mcphucknuckle@pinkroccade.com
On 14 mei, 03:58, "Rich Matheisen [MVP]" wrote: > brutus wrote: > >Hi > >we have an installation with 2 exchange 2003 servers in one > >organisation. One being used as a front-end server. > >The main server (mailboxes/public folders) is protected with Symantec > >Mail Security 6.0 for Exchange. > >Every day (morning) mails seem to get stuck in the smtp queue from the > >frontend server to the mailbox server. If i do nothing the mails get > >through (almost all at once) after a couple of hours > >When i force the connection only a few or no mails get through. > >Basically all external mails being delivered to the front end server > >are delivered to the mailbox with a delay that can vary from 5 minutes > >up to 12 (or more) hours. > >No poblem with internal mails and mails being sent to the internet > > >If i have a look at the event log of the front server I see that > >errors like the following are generated : > > >Message delivery to the host '10.4.12.5' failed while delivering to > >the remote domain 'MAILSERVER.korfina.net' for the following reason: > >The connection was dropped by the remote host. > > Is 10.4.12.5 your mailbox server? Is it your front-end server? Is > korfina.net your email domain? > > Have you configured any of your SMTP Virtual Servers (or SMTP > Connectors) with a smart host? > > -- > Rich Matheisen > MCSE, Exchange MVP > MS Exchange FAQ athttp://www.swinc.com/resource/exch_faq.htm > Don't send mail to this address mailto:h.p...@getronics.com > Or to these, either: mailto:h.p...@pinkroccade.com mailto:melvin.mcphucknuc...@getronics.com mailto:melvin.mcphucknuc...@pinkroccade.com- Tekst uit oorspronkelijk bericht niet weergeven - > > - Tekst uit oorspronkelijk bericht weergeven - Hi, thx yes 10.4.12.5 is our mailbox server (mailserver) and 10.4.12.20 is our front end server. no smart host is configured on either exchange server k rgrds xavier
brutus wrote: [ snip ] >> >Message delivery to the host '10.4.12.5' failed while delivering to >> >the remote domain 'MAILSERVER.korfina.net' for the following reason: >> >The connection was dropped by the remote host. >> >> Is 10.4.12.5 your mailbox server? Is it your front-end server? Is >> korfina.net your email domain? >> >> Have you configured any of your SMTP Virtual Servers (or SMTP >> Connectors) with a smart host? [ snip ] >yes 10.4.12.5 is our mailbox server (mailserver) and 10.4.12.20 is our >front end server. >no smart host is configured on either exchange server If the connection is being dropped I'd be looking for connectivity problems. But that doesn't speak to the classification of mailserver.korfina.net as a "remote domain". Is that the FQDN of your mailbox server? The domain "korfina.net" doesn't seem to have a MX record. -- Rich Matheisen MCSE+I, Exchange MVP MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm Don't send mail to this address mailto:h.pott@getronics.com Or to these, either: mailto:h.pott@pinkroccade.com mailto:melvin.mcphucknuckle@getronics.com mailto:melvin.mcphucknuckle@pinkroccade.com
On 15 mei, 02:49, "Rich Matheisen [MVP]" wrote: > brutus wrote: > > [ snip ] > > >> >Message delivery to the host '10.4.12.5' failed while delivering to > >> >the remote domain 'MAILSERVER.korfina.net' for the following reason> >> >The connection was dropped by the remote host. > > >> Is 10.4.12.5 your mailbox server? Is it your front-end server? Is > >> korfina.net your email domain? > > >> Have you configured any of your SMTP Virtual Servers (or SMTP > >> Connectors) with a smart host? > > [ snip ] > > >yes 10.4.12.5 is our mailbox server (mailserver) and 10.4.12.20 is our > >front end server. > >no smart host is configured on either exchange server > > If the connection is being dropped I'd be looking for connectivity > problems. > > But that doesn't speak to the classification of mailserver.korfina.net > as a "remote domain". Is that the FQDN of your mailbox server? The > domain "korfina.net" doesn't seem to have a MX record. > > -- > Rich Matheisen > MCSE, Exchange MVP > MS Exchange FAQ athttp://www.swinc.com/resource/exch_faq.htm > Don't send mail to this address mailto:h.p...@getronics.com > Or to these, either: mailto:h.p...@pinkroccade.com mailto:melvin.mcphucknuc...@getronics.com mailto:melvin.mcphucknuc...@pinkroccade.com Hi, korfina.net is the internal domain do i need a MX record then ? and the frontend and mailbox server are part of this domain (no firewall etc. in between ) k regards xavier
brutus wrote: >korfina.net is the internal domain >do i need a MX record then ? No. >and the frontend and mailbox server are part of this domain (no >firewall etc. in between ) If the connection between the FE and BE servers isn't reliable you should fix that. The BE server shouldn't be dropping the connection (or actively refusing the connection) from the BE if they're both on the same network switch. -- Rich Matheisen MCSE+I, Exchange MVP MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm Don't send mail to this address mailto:h.pott@getronics.com Or to these, either: mailto:h.pott@pinkroccade.com mailto:melvin.mcphucknuckle@getronics.com mailto:melvin.mcphucknuckle@pinkroccade.com
On 17 mei, 03:03, "Rich Matheisen [MVP]" wrote: > brutus wrote: > >korfina.net is the internal domain > >do i need a MX record then ? > > No. > > >and the frontend and mailbox server are part of this domain (no > >firewall etc. in between ) > > If the connection between the FE and BE servers isn't reliable you > should fix that. > > The BE server shouldn't be dropping the connection (or actively > refusing the connection) from the BE if they're both on the same > network switch. > > -- > Rich Matheisen > MCSE+I, Exchange MVP > MS Exchange FAQ athttp://www.swinc.com/resource/exch_faq.htm > Don't send mail to this address mailto:h.p...@getronics.com > Or to these, either: mailto:h.p...@pinkroccade.com mailto:melvin.mcphucknuc...@getronics.com mailto:melvin.mcphucknuc...@pinkroccade.com Hi, i already switched the connections once but no solution gr Xavier
On 19 mei, 09:48, brutus wrote: > On 17 mei, 03:03, "Rich Matheisen [MVP]" > > > > > > wrote: > > brutus wrote: > > >korfina.net is the internal domain > > >do i need a MX record then ? > > > No. > > > >and the frontend and mailbox server are part of this domain (no > > >firewall etc. in between ) > > > If the connection between the FE and BE servers isn't reliable you > > should fix that. > > > The BE server shouldn't be dropping the connection (or actively > > refusing the connection) from the BE if they're both on the same > > network switch. > > > -- > > Rich Matheisen > > MCSE+I, Exchange MVP > > MS Exchange FAQ athttp://www.swinc.com/resource/exch_faq.htm > > Don't send mail to this address mailto:h.p...@getronics.com > > Or to these, either: mailto:h.p...@pinkroccade.com mailto:melvin.mcphucknuc...@getronics.com mailto:melvin.mcphucknuc...@pinkroccade.com > > Hi, > > i already switched the connections once but no solution > > gr > Xavier- Tekst uit oorspronkelijk bericht niet weergeven - > > - Tekst uit oorspronkelijk bericht weergeven - any advice on how to check the connectivity between FE / BE (tool,... ) ?
brutus wrote: [ snip ] >any advice on how to check the connectivity between FE / BE >(tool,... ) ? I'd start with a network monitor. Wireshark is pretty easy to download and install. You'll at least be able to see what "dropped" means. -- Rich Matheisen MCSE+I, Exchange MVP MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm Don't send mail to this address mailto:h.pott@getronics.com Or to these, either: mailto:h.pott@pinkroccade.com mailto:melvin.mcphucknuckle@getronics.com mailto:melvin.mcphucknuckle@pinkroccade.com
On 20 mei, 04:20, "Rich Matheisen [MVP]" wrote: > brutus wrote: > > [ snip ] > > >any advice on how to check the connectivity between FE / BE > >(tool,... ) ? > > I'd start with a network monitor. Wireshark is pretty easy to download > and install. You'll at least be able to see what "dropped" means. > > -- > Rich Matheisen > MCSE, Exchange MVP > MS Exchange FAQ athttp://www.swinc.com/resource/exch_faq.htm > Don't send mail to this address mailto:h.p...@getronics.com > Or to these, either: mailto:h.p...@pinkroccade.com mailto:melvin.mcphucknuc...@getronics.com mailto:melvin.mcphucknuc...@pinkroccade.com hi I did not remark anything special using Wireshark. extra information : i'm using symantec as antivirus and antispam engine but this in only installed on the backend server gr xav
On 26 mei, 09:42, brutus wrote: > On 20 mei, 04:20, "Rich Matheisen [MVP]" > > > > > > wrote: > > brutus wrote: > > > [ snip ] > > > >any advice on how to check the connectivity between FE / BE > > >(tool,... ) ? > > > I'd start with a network monitor. Wireshark is pretty easy to download > > and install. You'll at least be able to see what "dropped" means. > > > -- > > Rich Matheisen > > MCSE, Exchange MVP > > MS Exchange FAQ athttp://www.swinc.com/resource/exch_faq.htm > > Don't send mail to this address mailto:h.p...@getronics.com > > Or to these, either: mailto:h.p...@pinkroccade.com mailto:melvin.mcphucknuc...@getronics.com mailto:melvin.mcphucknuc...@pinkroccade.com > > hi > > I did not remark anything special using Wireshark. > extra information : i'm using symantec as antivirus and antispam > engine but this in only installed on the backend server > > gr > xav- Tekst uit oorspronkelijk bericht niet weergeven - > > - Tekst uit oorspronkelijk bericht weergeven - addtionaly : mails get stuck in the queue everu day until around 10am...and then all of a sudden they get through. is there any hidden schedule i can change ? greetz xav
