Download Inbox Repair Tool

Inbox Repair do repair large sized files

Scanpst do scan missing PST files

Efficient software for all saved PST files

Perfectly manages entire damaged PST well.


Download Inbox Repair Tool
System Requirements

Processor : Pentium Class or High Class Procesors

Operating System : Windows (Windows 2000, XP, Vista, 2003) and Macintosh (Mac 10.4 x tiger, 10.3.9 Panther, and 10.5 x leopard)

Memory : Minimum 256 MB (512 MB recommended)

Hard Disk : 50 MB of free disk space

Software Help

"Thanks for the amazing Inbox Repair Tool. This can do recover out the entire lost and missing PST files in an efficient manner"

"Its really great to use this software, I was able to use it of my own without any kind of technical assistance."

Latest Articles

Outlook Express raises server error 421 while try to sending or receiving message from Outlook. It mainly occurs because of server problem. Mostly Microsoft exchange server doesn’t accept connection through POP3 by default. And when the user tries to send message without configuring server setting, the server refuses the connection and raises Outlook server error: 421. There may be more error code can be attached with Outlook error 421 like 0x800ccc81, 0x800ccc0e etc.

More reason for this error

It is not guaranteed to fix this error by configuring server settings because there may be more reasons behind this error so it is necessary to remove the entire bug from outlook to fix this error completely. Windows firewall and antivirus software are also a big issue of this error. Firewall settings refuse the incoming connection so the users are able to send message but unable to receive messages. Incorrect profile settings or damaged outlook profile also cause the Outlook Express 421 Error.


Download: Inbox Repair Tool! is a complete application for repairing damaged PST files.

How to fix outlook express 421 error

In order to fix Outlook Express Error 421, you need to follow some easy steps:

1. First change your server settings and set the inbound connections limit at maximum limit. To do that open Microsoft Exchange Server Administrator utility > click on Connections icon > open Internet Mail Service > and then open properties window. Now click on Advanced button it will open configuration window. Now set the “Max No. of Inbound Connections” to high number until the problem is solved. Close the entire window and restart your PC.

2. Double check your firewall settings and AV settings. If possible disable the firewall settings.

3. You must scan PST file for error. To scan PST file for error use inbox repair tool software. It is also known as scanpst.exe that automatically gets install in your PC while installing Outlook. This tool has limited functionality and if it fails to fix the problem, use PST Repair Tool to fix outlook express 421 error.