Smart hosts
We are running Exchange 2000 SP3 on two servers in the same organisation. The second one has only been added recently, and only has one mailbox on it so far. We set up the original server's SMTP virtual server to use a smarthost which is a UNIX server, as it isn't accessible from the Internet, and can't access it either. Now we've added the second server, and set up its virtual server in a similar way. I was expecting the two Exchange servers to communicate directly when handling messages for mailboxes on each other (i.e. in the Exchange organisation), but use the smart host for all other mail. However, this isn't what's happening. Instead, all messages for mail stores not on the same server are going to the UNIX system, and the format of the message bodies looks pretty odd (lots of 8-bit data, for example). The SMTP interaction seems to break down after the bulk of the message has been received, and the UNIX server claims that the Exchange server has gone away (timeout). A complication with this is that the primary address for all recipients in the organisation ends in a domain that is shared with the UNIX server. However, I've followed the instructions in Microsoft's Q321721 (shared address spaces), and until we added the second server, all messages were delivered fine, to mailboxes on both the Exchange and UNIX server. It's still only the messages between the two Exchange servers that have a problem. Should I be using an SMTP connector rather than just the virtual server? Can anyone shed any light on what's going on? Max Caines IT Services, University of Wolverhampton Wolverhampton, West Midlands WV1 1SB Tel: 01902 322245 Fax: 01902 322699 _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: SMTP connector and smart hosts
Hi, One option would be to create a CNAME in DNS for your two smtp servers, give the CNAME something like smtp.mycompany.com and use this alias as the smart host. You can then round robin between the two servers and provide failover if one of them goes down. Davy -Original Message- From: Varghese, Wilson [mailto:[EMAIL PROTECTED]] Sent: 18 September 2002 20:57 To: Exchange Discussions Subject: SMTP connector and smart hosts Is there a way to put multiple smart hosts in the General Tab on the SMTP connectors? I have two bridgehead servers I want to use to send messages to. One in CA, one in Indiana. Can I put both IP numbers in there enclosed in []? If so, what's the separator? Comma, semicolon, or space? Also would this work in a fail over situation? If this, can't be done.. How can I create something that would do this? Thanks in advance. Wilson _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: SMTP connector and smart hosts
Great, thanks. Hmm I searched support with every word i could think of and this Q did not show up.. _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
SMTP connector and smart hosts
Is there a way to put multiple smart hosts in the General Tab on the SMTP connectors? I have two bridgehead servers I want to use to send messages to. One in CA, one in Indiana. Can I put both IP numbers in there enclosed in []? If so, what's the separator? Comma, semicolon, or space? Also would this work in a fail over situation? If this, can't be done.. How can I create something that would do this? Thanks in advance. Wilson _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: SMTP connector and smart hosts
Create multiple SMTP connectors (on the same machine) and give them the same cost and same address space. Jason -Original Message- From: Varghese, Wilson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 18, 2002 11:57 AM To: Exchange Discussions Subject: SMTP connector and smart hosts Is there a way to put multiple smart hosts in the General Tab on the SMTP connectors? I have two bridgehead servers I want to use to send messages to. One in CA, one in Indiana. Can I put both IP numbers in there enclosed in []? If so, what's the separator? Comma, semicolon, or space? Also would this work in a fail over situation? If this, can't be done.. How can I create something that would do this? Thanks in advance. Wilson _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: SMTP connector and smart hosts
Q257426 says you use a semicolon between the hostnames, and yes, you enclose IP addresses in square brackets. Edgar J. Crowley Jr. Technical Consultant Windows Messaging Platforms Practice hp Services *510-612-3365 *[EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Varghese, Wilson Sent: Wednesday, September 18, 2002 11:57 AM To: Exchange Discussions Subject: SMTP connector and smart hosts Is there a way to put multiple smart hosts in the General Tab on the SMTP connectors? I have two bridgehead servers I want to use to send messages to. One in CA, one in Indiana. Can I put both IP numbers in there enclosed in []? If so, what's the separator? Comma, semicolon, or space? Also would this work in a fail over situation? If this, can't be done.. How can I create something that would do this? Thanks in advance. Wilson _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
Ex2k SMTP Smart Hosts and Multiple Servers
Hi, 2 servers not transferring internal mail, same domain, messages stick in SMTP (Remote Delivery) queue for other. I have 2 Ex2k SP2 servers in the same Administrative group . Both are configured to use an external (to Domain) smart host. Both servers can send and receive external mail ok. Networking is a bit odd and may be causing the problem, identical boxes; 3 x Intel 100Mbit aggregated on routable IP. 1 x Intel 1Gbit non-routable IP direct cable connection. Each server sees the other on the non-routable IP and shares, DFS, etc work ok. DNS server records both IP addresses for each. Any ideas? Paul Christopher _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
Re: Ex2k SMTP Smart Hosts and Multiple Servers
Did they ever work. Sounds like when installed they set up as separate email domains. - Original Message - From: Paul Christopher [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 25, 2002 7:29 AM Subject: Ex2k SMTP Smart Hosts and Multiple Servers Hi, 2 servers not transferring internal mail, same domain, messages stick in SMTP (Remote Delivery) queue for other. I have 2 Ex2k SP2 servers in the same Administrative group . Both are configured to use an external (to Domain) smart host. Both servers can send and receive external mail ok. Networking is a bit odd and may be causing the problem, identical boxes; 3 x Intel 100Mbit aggregated on routable IP. 1 x Intel 1Gbit non-routable IP direct cable connection. Each server sees the other on the non-routable IP and shares, DFS, etc work ok. DNS server records both IP addresses for each. Any ideas? Paul Christopher _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
RE: Ex2k SMTP Smart Hosts and Multiple Servers
Um, thanks Tony. Yes this has worked, intermittently. The servers are in the same AG, can be monitored/managed centrally, mailboxes can be moved, etc. I'm thinking I need special connectors or a virtual SMTP. Paul -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Tony Hlabse Sent: 25 January 2002 13:13 To: Exchange Discussions Subject: Re: Ex2k SMTP Smart Hosts and Multiple Servers Did they ever work. Sounds like when installed they set up as separate email domains. - Original Message - From: Paul Christopher [EMAIL PROTECTED] To: Exchange Discussions [EMAIL PROTECTED] Sent: Friday, January 25, 2002 7:29 AM Subject: Ex2k SMTP Smart Hosts and Multiple Servers Hi, 2 servers not transferring internal mail, same domain, messages stick in SMTP (Remote Delivery) queue for other. I have 2 Ex2k SP2 servers in the same Administrative group . Both are configured to use an external (to Domain) smart host. Both servers can send and receive external mail ok. Networking is a bit odd and may be causing the problem, identical boxes; 3 x Intel 100Mbit aggregated on routable IP. 1 x Intel 1Gbit non-routable IP direct cable connection. Each server sees the other on the non-routable IP and shares, DFS, etc work ok. DNS server records both IP addresses for each. Any ideas? Paul Christopher _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
Re: Multiple Smart Hosts
Never mind. I found the answer nested in a KB article. Here it is if you're interested. -- RESOLUTION Instead of creating two SMTP connectors with the same address space and bridgehead (but different smart host), try creating a single connector with multiple smart hosts. You can do this by either of two ways. You can use Domain Name System (DNS) in a round-robin configuration. Or, you can enter the smart hosts' names separated by commas in the Forward all mail through this connector to the following smart hosts option on the General tab of the SMTP Connector Properties page. You can use the NetBIOS name, a fully-qualified domain name (FQDN), IP address, or any combination thereof. Some examples include: Example A: By NetBIOS Name server1,server2,server3 Example B: By FQDN host1.domain.com,host2.domain,com,host3.domain.com Example C: By IP Address [192.168.0.1],[192.168.0.2],[192.168.0.3] When sending to smart hosts separated with commas, if those smart hosts are represented by IP addresses contained in square brackets (which is done to bypass name resolution), as in Example C, instead of the DNS name, you may experience problems if you are running an Exchange 2000 Server version that is earlier than Exchange 2000 Server Service Pack 1 (SP1) with the round robin load balancing. Instead, what will happen is that the connector will only use the first server in the list. To work around that issue you can enter the smart host in the round robin by either host name or by FQDN. Original Message --- From: [EMAIL PROTECTED] [EMAIL PROTECTED] Date: Wed, 29 Aug 2001 15:53 -0700 In Exchange 2000 can you list multiple (ie, redundant) smart hosts on a single connector similar to Exchange 5.5? If so, what's the seperator? (comma, semi-colon?) Thanks. Eric _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED] _ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin:[EMAIL PROTECTED]
