I have IIS SMTP set on a local web server - mail sends fine, with the
exception of some ISPs - I get the message below:
mail.mhglax.com+has+refused+your+connection+because+your+server+did+not+have+a+PTR+record.
My system admin tells me that the exhange box has a PTR record - but ...

I have IIS SMTP setup on my local dev box - some of the ISPs were blocking
it, such as Comcast - I contacted them and they removed my IP/domain from
their blocked list.
Question is - I am trying to route all SMTP mail through IIS to my exchange

You must get this question a lot, but I'm just stumped and can't find an
answer that explains the solution step by step.
Background:
IIS6.0

My setup is:
Our hostingserver with iis and smtp installed in a workgroup.
We also have a internal domain with exchange 2003 installed. Websites on our
hostingserver sends out e-mails do external domains and our internal domain.

I have a Windows 2000 server running iis with smtp and am getting  The SMTP
verb which caused the error is 'RCPT'.  The response from the remote server
is '550 5.7.1 Unable to relay error.  This happens on all emails going to
outside domains.  It works fine for the internal ...

With IIS 6's SMTP server, is it possible to set up a remote domain
that uses TLS + Client Certificate for outbound connections? The only
certificate setting I see is for inbound SMTP connections. If not, I'm
certain Exchange can do it, but is there a free alternative?

I am having a problem setting up SMTP in IIS7.  I matched (as close as
possible) the settings from IIS6 SMTP settings to the IIS7 settings server
and the mail is not being sent.  When select the “Store e-mail in pickup
directory” the message does get posted.

I have a web mail form embedded in an asp.net 1.1 web site, but it won't
send mail on the R2 platform.
Regular 2003 server enterprise standard mail works fine.  Telnet SMTP mail
not an issue.

Our email and computer security teams want to tighten up emails being sent
externally. They want the users to authenticate to the SMTP server. I'm not
having much luck and was wondering if anyone else has figured this out.
Environment: IE6/XP client --> W2K3/IIS 6/ASPX page .Net ...

I'm very new to IIS mail services. I have set up my POP3 server to use
an encrypted password file, because I'm hosting multiple domains and I
don't want to create a Windows user for each mailbox.
My problem now is, how do I authenticate the users to send outbound mail

I was hoping someone could help me out with a fairly basic query I had
regarding MX records.
We have a Sharepoint 2007 running on a Windows 2003 box,
myserver.kam.com, that we'd like to configure to send/ receive emails.

I haven't been paying too much attention to my smtp service until
recently... i have started to see lots of apparent probes with random user
names at my domain.  these i assume send out a failure message for an
unknown user.  Is it possible, or even advisable, to not send a ...

Hello folks,
having the following problem:
An encrypted Mail isn't delivered from the Smarthost (IIS 5.1 on Windows XP
Prof.) to the destination server. The smarthost quits undefinably the SMTP