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Thread: Problems with SMTP

Last post 07-13-2009 9:50 AM by tomkmvp. 3 replies.

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07-10-2009, 4:13 AM

IIS_SDM
Joined on 07-10-2009, 7:59 AM
Posts 2

Problems with SMTP

Reply Contact

Hello. I have a 2003server with sp2 and I have installed IIS 6.0 with SMTP. This machine belongs a Domain. "mybusinnes.local"

I have a program that have a WebPlatform. This is able to send mails through the SMTP of IIS.

My problems is that the mails are stopped in DropFolder and when I see the dat file I read the next:

Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;550-Verification failed for <prueba@serveralchemy83.mybusiness.local>
550-Unrouteable address
550 Sender verify failed

But the mails that informs me that the mail doesn't send is reached me and the sender is postmasters@mybusiness.local

I have configured anonymous access to send mails from the SMTP.

Why the mails don't send?

Thanks in advance.

Regards.

Tags: Problems SMTP error 550

07-10-2009, 9:34 AM In reply to

jeff@zina.com
Joined on 09-26-2003, 6:43 AM
Naples, FL, USA
Posts 2,100

Re: Problems with SMTP

Reply Contact

If they are in the drop folder, they are actually behaving correctly. Your SMTP has decided that they are local and left them there. The real problem is that it appears your sending address cannot be validated. This is quite common when you use a local SMTP server to handle the same domain as your mail server, which does both SMTP and POP (and probably MAPI).

The solution is to send through your mail server, not the SMTP service on the local system. If you must send through a local SMTP service, define your mail server as the smart host. You must of course configure your mail server to allow mail from your web server.

Jeff

Look for Wrox's new book Professional IIS 7 in your local bookstore, or order now at Amazon.com

07-13-2009, 4:11 AM In reply to

IIS_SDM
Joined on 07-10-2009, 7:59 AM
Posts 2

Re: Problems with SMTP

Reply Contact

Thanks for your response.

I have understood you but I don't have a mail server.

I have a domain, with 12 computers more or less, one domain controller and external mailserver. It is a small business.

The software that sends the mails is a "database web". I try to explain you. I have document management software and it contains databases. Also, you can see the databases through Internet because it installed in IIS and it is able to send documents of the database, for this, it need install SMTP service.

But when I send a mail with this software IIS send me the error that I told here.

Whatever I don't have Exchange or another mail server. Then What could I do?

Thanks