We are using the Asp.Net SMTP Client to send email via our Exchange 2003 SP2
Server. When trying to send email to a local recipient I am getting the
following error:-
Server: 172.19.2.21. Message: Mailbox unavailable. The server response was:
5.7.1 Requested action not taken: message refused
What is causing this? The asp.net machine is on the same LAN as the Exchange
Server. I checked the Exchange Server and all local IPs are in the "allow"
list.
TIA!How do you have the Recipient MailAddress setup? Are you using
name@.domain.local or name@.domain.com
Sounds like an issue with formatting the address correctly, and now
with SmtpClient
param@.community.nospam wrote:
Quote:
Originally Posted by
Hi all,
>
We are using the Asp.Net SMTP Client to send email via our Exchange 2003 SP2
Server. When trying to send email to a local recipient I am getting the
following error:-
>
Server: 172.19.2.21. Message: Mailbox unavailable. The server response was:
5.7.1 Requested action not taken: message refused
>
>
What is causing this? The asp.net machine is on the same LAN as the Exchange
Server. I checked the Exchange Server and all local IPs are in the "allow"
list.
>
TIA!
For the recipient mailaddress I am using name@.domain.com
If I change the SMTPServer on the SMTPClient to another smtp server,
everything works fine.
What could be causing this?
"Sean Chambers" <dkode8@.gmail.comwrote in message
news:1158344339.960590.194450@.h48g2000cwc.googlegr oups.com...
Quote:
Originally Posted by
How do you have the Recipient MailAddress setup? Are you using
name@.domain.local or name@.domain.com
>
Sounds like an issue with formatting the address correctly, and now
with SmtpClient
>
param@.community.nospam wrote:
Quote:
Originally Posted by
>Hi all,
>>
>We are using the Asp.Net SMTP Client to send email via our Exchange 2003
>SP2
>Server. When trying to send email to a local recipient I am getting the
>following error:-
>>
>Server: 172.19.2.21. Message: Mailbox unavailable. The server response
>was:
>5.7.1 Requested action not taken: message refused
>>
>>
>What is causing this? The asp.net machine is on the same LAN as the
>Exchange
>Server. I checked the Exchange Server and all local IPs are in the
>"allow"
>list.
>>
>TIA!
>
I have complete 1.1 and 2.0 examples here:
http://sholliday.spaces.live.com/
2/8/2006 entry.
You need to try the different authentication modes.
Also. check C:\Inetpub\mailroot and see if they're jammed up there.
<param@.community.nospamwrote in message
news:%23gNx4lQ2GHA.1548@.TK2MSFTNGP02.phx.gbl...
Quote:
Originally Posted by
For the recipient mailaddress I am using name@.domain.com
>
If I change the SMTPServer on the SMTPClient to another smtp server,
everything works fine.
>
What could be causing this?
>
"Sean Chambers" <dkode8@.gmail.comwrote in message
news:1158344339.960590.194450@.h48g2000cwc.googlegr oups.com...
Quote:
Originally Posted by
How do you have the Recipient MailAddress setup? Are you using
name@.domain.local or name@.domain.com
Sounds like an issue with formatting the address correctly, and now
with SmtpClient
param@.community.nospam wrote:
Quote:
Originally Posted by
Hi all,
>
We are using the Asp.Net SMTP Client to send email via our Exchange
2003
Quote:
Originally Posted by
Quote:
Originally Posted by
Quote:
Originally Posted by
SP2
Server. When trying to send email to a local recipient I am getting the
following error:-
>
Server: 172.19.2.21. Message: Mailbox unavailable. The server response
was:
5.7.1 Requested action not taken: message refused
>
>
What is causing this? The asp.net machine is on the same LAN as the
Exchange
Server. I checked the Exchange Server and all local IPs are in the
"allow"
list.
>
TIA!
>
>
Hello Param,
As for the send mail code, are you using the "Network" as the SmtpClient's
"SmtpDeliveryMethod" and have you tried supply a credential or use the
default credential. Also, when using Exchange server in a domain
environment, you should make sure you have permission to send mail as the
"From" address since exchange server will validate this at server-side.
In addition, as you mentioned it works when using another SMTP server, is
that SMTP server a normal SMTP relay server which also transfer message to
another exchange server? If possible you can also create a local
smtpserver through IIS which act as a relay server to the Exchange server
and send mail through this local SMTP server to see whether it works.
So far based on my experience, it is likely a server environment specific
issue. Here is a simple code snippet which works for sending mail to local
domain user through local network exchange server:
==========================
private void btnSend_Click(object sender, EventArgs e)
{
MailMessage msg = new
MailMessage("steven@.microsoft.com","steven@.microsoft.com");
msg.Subject = "Smtp Client Test Message";
msg.IsBodyHtml = true;
msg.Body = "<font size='30'>Hello World</font>";
SmtpClient sc = new SmtpClient("smtphost");
sc.DeliveryMethod = SmtpDeliveryMethod.Network;
sc.UseDefaultCredentials = true;
sc.Send(msg);
}
===========================
Please feel free to post here if you have any other finding or any other
questions on this.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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