Solved

problem connecting to SMTP

Posted on 2010-08-28
7
387 Views
Last Modified: 2013-11-05
I have a WIN 2003 server.  I have a SMTP server on it and now I want to connect to that mailserver from home to send a mail.  I have allowed relaying from my home IP, etc. but I can't get it to work.

Incoming mail work fine (using the built-in POP3 service on the server) but when trying to send with Outlook express I get socket error 1051 error 0x800CCC0E

0
Comment
Question by:usbboy
  • 4
  • 3
7 Comments
 
LVL 20

Expert Comment

by:woolnoir
ID: 33549701
Do you have a firewall either on the 2003 server, or between it and the internet connection. The fact you get a socket error on SMTP and non POP3 suggests some level of filtering is happening...
0
 

Author Comment

by:usbboy
ID: 33549750
I tried it now from another location and it worked,  so the problem seems to be in my home setup.  Let me dig into that before closing this thread but thanks so far for pointing me in the right direction.
0
 
LVL 20

Expert Comment

by:woolnoir
ID: 33549758
The maybe your blocking the port on your home firewall - or maybe your ISP is filtering it (some do, to force you to use their ISP mail server and reduce spam) COuld be worth checking both.
0
What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

 
LVL 20

Expert Comment

by:woolnoir
ID: 33549766
You might want to try telnetting to another SMTP server on port 25

10      cluster1.eu.messagelabs.com      193.109.254.67      5 min      SMTP Test      Blacklist Check

a telnet to cluster1.eu.messagelabs.com:25 followed by a HELO test.com should elicit a response, if you get a time-out then its youre home network or isp filtering.
0
 

Author Comment

by:usbboy
ID: 33549846
You are right.  It is my ISP filtering  port 25.    telnet cluster1.eu.messagelabs.com timed out and then I tried another mailhost that uses port 587 and that connected fine in telnet.  So now the question is how I setup my SMTP to listen to port 587  ?      
0
 
LVL 20

Accepted Solution

by:
woolnoir earned 250 total points
ID: 33549852
Open Start > Programs > Microsoft Exchange > System Manager.

Expand Administrative Groups > First Administrative Group > Servers > SMTP Backend name here > Protocols > SMTP.

Right click "Properties" on "Default SMTP Virtual Server". In "General" tab in "IP address" section press "Advanced" button. In "Advanced" window press "Add" button. Leave "(All Unassigned)" in "IP address" field and enter alternative port (for example 2525) to "TCP port" field. Press "OK" three times.
0
 

Author Comment

by:usbboy
ID: 33550292
Works fine now.  Thanks.
0

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

MS outlook is a premier email client that enable you to send and receive the e-mails with various file formats of attachments such as document files, media file, and many others formats. There is some scenario occurs when a receiver of an e-mail mes…
Microsoft has released various new features which are capable of handling various tasks. One of these tasks is ‘Migration from pop3 to Exchange Server’. Pop3 data stores various data along mailboxes like contacts, tasks, etc. So, it becomes the need…
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Servers >> Certificates…

762 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

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now