Kartik Vashishta wrote:
I just got off the phone with the email admin here. Seems they have
shut off the relaying feature (anti-spam effort). Only mailbox
accounts can send and recieve mail. So looks like im not going to be
able to use this or any internal mail server
I would like to try to
configure my server to route mail via an external ip while
still using my local (internal) nameservers anyone know how i can do this?
Thanks again
In general the local (internal) nameservers should not affect this.
I think you have three options if you want sendmail on a Solaris box to
send mail via an Internet-connected mailserver:
1. If your Solaris box has a valid and predictable hostname via IP->name
lookup which is within the domain the mail server supports (i.e. a
static IP address with host sol.domain.com where the mailserver is for
domain.com) then standard anti-relay setups should work without
username/password. But if you're connecting from a home DSL/cable
connection via DHCP this probably won't work. Note that this is the
mail server's name lookup, not just the local Solaris box.
2. You can recompile sendmail with SASL support, because it's not
enabled by default, and then use SASL config to configure the
username/password that the mailserver needs.
3. If the email admin can configure the remote email server to allow
authenticated TLS connections as well as the usual SASL
(username/password) then you can use this, which is what I'm using here.
- Notes on the Solaris setup from John Beck are here:
http://blogs.sun.com/jbeck/entry/how_to_set_up_sendmail
- In my case the remote mail server is running postfix and has
"smtpd_recipient_restrictions = ..., permit_tls_clientcerts, ...",
together with also configuring the necessary certificates.
The TLS case (3) requires the mail admin to install a SSL certificate
for your host though, as well as you configuring this at the sending
end, so your admin may or may not be willing to do this.
Hugh.
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