SMTP server stops sending mails

[harinarayananvp]

Hi,

I have a tool in Vb6 and it is generating mail using CDO.message and SMTP. Till the previous week , it was working fine. Now, the mails are not going from the tool. Why this is happening?..How to resolve this?..The code is fine.I think some issue with SMTP or CDO..The port 25 ( which i am using) is not listening.If i need to update SMTP port, how can I do that?..pls help to solve the issue.

( if it is not the right forum to ask dis question, pls inform me the right forum)

[harinarayananvp]

Hi,


I had found out badmails in C:\wwwroot\Inetpub. According to it,following is the reason for mail failure.

Action: failed
Status: 5.3.0
Diagnostic-Code: smtp;553 5.3.0 ERROR There is no valid MX Record for that domain


Pls help to solve d issue

[ivanx_wu]

I used to build a SMTP server with IIS6. A lot of mails failed of sending out either. The reason I get is that the destination server refuse my connection, because they think it's spam.

[Arleen]

Hello...

I want to know that,Are you sending bulk emails at once???
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