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444 4.4.4 Error: 'NONSMTPGW.UnauthorizedAccess. The access requested is not permitted by the OS for the specified path'

Author: Luis Fernandes Updated

Overview

GFI FaxMaker cannot send faxes from Microsoft Outlook (which is installed either on the Microsoft Exchange server or on a separate machine), because of one or more of the following options:
  • When clicking send in Microsoft Outlook, you receive an NDR email notification or email with an error text, either from Microsoft Exchange server or from the GFI FaxMaker machine.
  • No error is shown in the GFI FaxMaker Monitor.
  • The fax recipient did not receive the fax page(s).
  • You encounter an NDR email notification from Microsoft Exchange server with a message similar to the following:
Pending
11/16/2011 17:41 srvr.domain.local
The message has been queued on server 'srvr.domain.local' since 11/16/2011 5:41:04 PM (UTC+02:00). The last attempt to send the message was at 11/16/2011 5:37:21 PM (UTC+02:00) and generated the error '444 4.4.4 NONSMTPGW.UnauthorizedAccess The access requested is not permitted by the OS for the specified path.'.

Environment

  • GFI FaxMaker
  • Microsoft Exchange 2010
  • All supported environments

Root Cause

A routing issue causes this problem. For example, if the GFI FaxMaker SMTP connector does not have the correct address space configured, Microsoft Exchange server will not know where to route emails (email fax requests) addressed to that are sent to address@faxmaker.com or [FAX: number].

This is also the case if the IIS SMTP server does not have the GFI FaxMaker domains configured as aliases.

Resolution

Ensure that the FaxMaker directory and all its subfolders have the NTFS security permissions set to 'Everyone' - 'Full control'.

Alternate Resolution

A quick test as follow may help to locate the root of the problem:
  1. Stop the GFI FaxMaker FaxServer and the GFI FaxMaker Message Transfer Agent (MTA) services.
  2. Send an email fax request from Microsoft Outlook.
  3. Check if the email arrives in the ..\FaxMaker\sinkdrop directory. The files in this directory will be in .eml format. If no email is found in this directory, then the problem is with how the faxes are routed to GFI FaxMaker server.
  4. If the email arrives in this directory, start the GFI FaxMaker Message Transfer Agent service. This will cause the MTA to process the outbound email fax request from the ..\FaxMaker\sinkdrop directory. The SFM, BDY and other attachments of this email are stored in the ..\FaxMaker\out directory by the MTA.
  5. Check the content of the ..\FaxMaker\out directory.
If no files are found in the ..\FaxMaker\Sinkdrop directory, the first step would be to check the Microsoft Exchange connectors (especially created to route email fax requests to the GFI FaxMaker server).
To check the GFI FAXmaker connector in Microsoft Exchange 2003 server:
  1. Expand Administrative Group > Routing Groups > First Routing Group > Connectors.
  2. Here you should find the GFI FaxMaker SMTP Connector. If you do not find the connector, you will need to create it.
  3. Open the Properties for this connector and ensure that you have entered the IP address of the GFI FaxMaker server in the Forward all mail through this connector to the following smart host under the General tab.
  4. Once this is done, click the Address Space tab and ensure that you have the following address spaces:
User-added image

Once you have confirmed that your GFI FaxMaker SMTP connector is set up correctly, you should ensure that your IIS Settings are set up correctly when GFI FaxMaker is installed on a separate machine to the Microsoft Exchange server.
  1. Browse to IIS Manager.
  2. Ensure that the faxmaker.com, smsmaker.com, FAX and SMS domains are present as aliases.
  3. Ensure that you have added your email domain.
Furthermore, you can also run a telnet test which simulates the sending of email fax requests using the SMTP port. Each stage of the test returns a result, and if an SMTP error is returned, the email fax request will fail to be sent. This procedure can give you a clear indication of why the email fax request was unable to be routed and sent.
  1. On the Microsoft Exchange server, open command prompt and telnet port 25 of the GFI FaxMaker machine:
C:\Documents and Settings\Administrator> telnet %faxmakerip% 25
  1. If the SMTP Service is running, then you will receive an answer similar to this one:

220 ISA.xyz.gfi Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830 ready at  Wed, 26 Mar 2008 08:34:56 +0000

  1. Type "Hello":
Hello

250 ISA.test.gfi Hello [192.168.1.1]

  1. Try to access the virtual SMTP Server with the following SMTP FROM command:
mail from: youremail@domain.com

You will receive the following answer:

250 2.1.0 youremail@domain.com....Sender OK

  1. If you receive an error message at this point, then we know that an object from the Faxmaker.com domain is not allowed to access the virtual SMTP Server.
  2. Next, enter a fax number and send it to the faxmaker.com domain. For testing purposes, this does not need to be a real fax number.
rcpt to: 0123456@faxmaker.com

You will receive the following answer:

250 2.1.5 0123456@faxmaker.com 

  1. If you receive an error at this point, it will most likely be a relay problem. In that case, you must permit the machine that you are using for this test to relay.
  2. Try to complete the test.
data 
354 Start mail input; end with <CRLF>.<CRLF> 
hello, this is a test

You will receive the following answer:

250 2.6.0 <ISAbpH71yEXUIEA000000a5@SvenISA.xyz.gfi> Queued mail for delivery.

Confirmation

If you receive a message ID, then the test was successful.

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