Solved

Emails cause errors and block traffic

Posted on 2014-02-18
2
902 Views
Last Modified: 2014-02-18
We have a Windows 2012 web server which has recently been having a few problems with sending the odd SMTP email (generated by an ASP web application). I don't know much about this but I've been tasked with trying to sort it. When either of the errors below occur, the email in question sits on the server in the SMTP queue folder. The only solution until now has been to remote in to the server and manually delete the offending email.  In the Event log we see the following -

PROBLEM 1
Message delivery to the host '<destination IP' failed while delivering to the remote domain 'customer.co.uk' for the following reason: An SMTP protocol error occurred.
The SMTP verb which caused the error is 'HELO'.  The response from the remote server is '501 Syntax error in parameters or arguments
D70204C0

PROBLEM 2
Message delivery to the host 'Our external IP' failed while delivering to the remote domain 'ourcompanyname.com' for the following reason: The connection was dropped by the remote host.
D30204C0

Can anyone offer assistance?

Many thanks.
0
Comment
Question by:funasset
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 1

Accepted Solution

by:
Eric_Where_am_I earned 500 total points
ID: 39867467
Problem 2 looks like a product of Problem 1.  I think if you address 1 then 2 will go away.

Sounds like exactly what it says, a syntax error in the code that SMTP reads to process the request.

Are these processes a function of a form that you fill out so that a server can send mail?

if so check the settings in the form...

or is this a script that you can edit.

if so...it is likely that something specific has changed and needs to be updated in the script.

if it is script then an expert will want to see the script...I am not that guy.
0
 

Author Closing Comment

by:funasset
ID: 39867805
Many thanks.

I gave this to our guy who handles this side of the business and it helped to point him towards a better method of handling such emails.  I'm afraid I can't say what it is as frankly I don't understand!

Cheers for your useful pointer though.
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article will review the basic installation and configuration for Windows Software Update Services (WSUS) in a Windows 2012 R2 environment.  WSUS is a Microsoft tool that allows administrators to manage and control updates to be approved and ins…
Resolve DNS query failed errors for Exchange
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happen…
This tutorial will walk an individual through the process of installing of Data Protection Manager on a server running Windows Server 2012 R2, including the prerequisites. Microsoft .Net 3.5 is required. To install this feature, go to Server Manager…

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question