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Home > Archive > IIS and SMTP > March 2004 > How do I change the SMTP address?
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How do I change the SMTP address?
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| serverlan 2004-03-30, 9:36 pm |
| Hi just need to know how to change or add a second smtp address incase of failure. I need to add eg. mailer.smtp.net.uk to exchange so it can still send and receive mail if our main connection goes down. This is a backup ISDN line so I need to know what I
have to change in order to repoint the connection. Any ideas greatly appreciated..
Thanks,
Ben.
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| Ken Schaefer 2004-03-31, 12:35 am |
| Second SMTP address doesn't have anything to do with a second line per se.
If you want Exchange to accept mail for two different domains, then edit
your Recipient Policy.
If you want mail for domain1.com to come in via 1 IP address, and mail for
Domain2.com to come in via a second IP address, you need to edit the MX
records for those domains in the DNS.
Cheers
Ken
"serverlan" <anonymous@discussions.microsoft.com> wrote in message
news:6439FDFB-B8DC-4D64-81AF-135703D2E2D6@microsoft.com...
: Hi just need to know how to change or add a second smtp address incase of
failure. I need to add eg. mailer.smtp.net.uk to exchange so it can still
send and receive mail if our main connection goes down. This is a backup
ISDN line so I need to know what I have to change in order to repoint the
connection. Any ideas greatly appreciated..
:
: Thanks,
:
: Ben.
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| serverlan 2004-03-31, 6:35 am |
| I am abit confused we don't want accept messages from two different domains. We have one domain name eg.mycompany.com and we need to still receive it for the one domain. If the connection to our ISP goes down we can no longer send or receive because the S
MTP address cannot be found eg.mailer.isp.net.uk. All I want to do is change the address to another ISP eg. mailer.isp2.net.uk so we can still send/receive across the internet. So there is only one domain we want to receive mail for but two ISP's we need
to configure to use for redundancy incase our ISP goes offline. Is there an easy way to reroute the mail?
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| m.marien 2004-03-31, 12:41 pm |
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"serverlan" <anonymous@discussions.microsoft.com> wrote in message
news:1F736FB9-4490-40D2-81A9-C882A85B8E21@microsoft.com...
> I am abit confused we don't want accept messages from two different
domains. We have one domain name eg.mycompany.com and we need to still
receive it for the one domain. If the connection to our ISP goes down we can
no longer send or receive because the SMTP address cannot be found
eg.mailer.isp.net.uk. All I want to do is change the address to another ISP
eg. mailer.isp2.net.uk so we can still send/receive across the internet. So
there is only one domain we want to receive mail for but two ISP's we need
to configure to use for redundancy incase our ISP goes offline. Is there an
easy way to reroute the mail?
If the physical connection to your ISP goes down you probably won't be able
to send or receive from any place. However, I can see that if your
connection goes down, you might want to have another SMTP server somewhere
that will collect your mail until your connection is restored. If that is
the case, then just add an MX record to your zone file.
mailer.isp.net.uk. IN MX 10 yourmailserver.mailer.isp.net.uk.
mailer.isp.net.uk. IN MX 20 anothermailserver.somewhere.else
The SMTP server (anothermailserver.somewhere.else) will have to be setup to
receive mail for your domain (mailer.isp.net.uk) and should route it to your
mail server (yourmailserver.mailer.isp.net.uk). If it's an IIS SMTP server
it can do that with a remote domain.
So the preference is given to your mail server (10), but if it can't be
reached it will be sent to another mail server (20), which will forward it
to your mail server when it can again be reached.
Is that the scenario you're looking for ?
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| Ken Schaefer 2004-03-31, 9:36 pm |
| I don't think this has anything to do with IIS.
When you configure MX (mailer exchange) records in the DNS, you specify a
priority. When someone wants to send you mail, it should try the highest
priority address first, and then the next highest one, etc until it reaches
a MX host that it can communicate with.
So, you need to configure multiple MX records in the DNS for your domain.
Cheers
Ken
"serverlan" <anonymous@discussions.microsoft.com> wrote in message
news:1F736FB9-4490-40D2-81A9-C882A85B8E21@microsoft.com...
: I am abit confused we don't want accept messages from two different
domains. We have one domain name eg.mycompany.com and we need to still
receive it for the one domain. If the connection to our ISP goes down we can
no longer send or receive because the SMTP address cannot be found
eg.mailer.isp.net.uk. All I want to do is change the address to another ISP
eg. mailer.isp2.net.uk so we can still send/receive across the internet. So
there is only one domain we want to receive mail for but two ISP's we need
to configure to use for redundancy incase our ISP goes offline. Is there an
easy way to reroute the mail?
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