Mail server errors

Task – Sending reported error (0x80042109) : Outlook cannot connect to your outgoing (SMTP) e-mail server. 
Check your outgoing server name, the port number and SSL setting, and the authentication setting. Open the Account Settings dialog, double click on the affected email account. Is the server name correct? Click the More Settings button. Check the authentication settings on the Outgoing server tab, and the port number and SSL settings on the Advanced tab.

Error 0x800CCC0F when sending or receiving email. 

Usually caused by Antivirus software scanning email, but antispam scanners may cause Outlook to return this error as well. Disable the email scanning or increase the timeout setting. Also, make sure your firewall is allowing the scanner software to connect to the Internet.

Error 0x800CCC7D when sending email 

This error code means you have SSL enabled and your mail server doesn’t support SSL. Disable SSL in Tools, Email Accounts, double click on the account, More Settings, Advanced tab. The error message may say that it’s a Secure Sockets Layer error.

Error 0x800CCC78 when sending 

Verify the address you have entered in the From field is correct. Make sure there are no leading or ending spaces or other simple to overlook typos in your address. Verify sending authentication is correct in the Outgoing server tab of the More Settings dialog.

Error 0x80040119 when sending 

“0x80040119″ and“Unknown error” error messages when you try to read, send, receive, or deletee-mail in Outlook (814441) Disable the application accessing Outlook’s data and restart Outlook. You may need to reboot the computer before Outlook will send.

Error 0x80042108 when receiving messages. 

There are a couple of causes for this error. You may have SSL enabled and don’t need it or you are running Norton Personal Firewall 2002 or Norton Internet Security software.

#5.5.0 smtp;553 sorry, that domain isn’t in my list of allowed rcpthosts (#5.7.1)

This means the server you are trying to send to is blocking mail sent from your server. You’ll need to contact the recipient’s administrator or send your message using a different mail server.

553 5.7.1 Sender address rejected: not owned by user

This means you are not using the correct outgoing (SMTP) server authentication settings.
In Outlook 2007, go to Tools, Accounts Settings. In Outlook 2010 and 2013, go to File, Account Settings. Double click on the email account then click MoreSettings. Select Outgoing Server tab. Select Log on using and enter the username and password that can send using this SMTP server. Enable SPA only if your server supports it.

1. Outlook Send Error: “The operation failed. An object could not be found” or “Object not found”

Description: the “object not found” error message is triggered when you are trying to send an email from Outlook. The regular reasons are:

·     Your Outlook profile is corrupt
Solution: go to the Windows Control Panel -> Mail -> Mail Setup -> Show Profiles -> Add. Create a new Outlook profile, add your email account(s) to it, open Outlook with your new profile and try sending the message again.

·     Your automatic SMTP settings are not picked up correctly
Solution: manually configure your outgoing SMTP server settings in Outlook. The easiest way to do it is by removing your email account (from the Outlook file menu -> Account Settings) and adding it again (this time make sure you do not use the option to auto-detect mail server settings). If you are unsure about the SMTP values, please contact your email provider.

·     While using Outlook in Workgroup or Corporate modes, one of your Outlook PST data files was moved or erased
Solution: create a new Outlook profile and re-add your data files to it. For step by step instructions, please see

http://support.microsoft.com/kb/292022

2. Sending / Receiving reported error: “Outlook data file cannot be accessed (error 8004010F)”

Description: the error message is triggered when you are sending or receiving emails. The regular reasons are:

·     Emails are being saved to the wrong location
Solution: If you are using multiple email account or data files, it is possible that Outlook tries to save emails to a wrong location. To solve it, please remove your Outlook data files from your Account Settings -> Data files list and add them back again. Alternatively, you can also try by changing the folder where emails are being delivered (select the desired account from File -> Account Settings and click on “Change Folder”).

·     Your Outlook profile is configured incorrectly
Solution: create a new Outlook profile and add your existing data files to it by following these steps: http://support.microsoft.com/kb/292022

·     Outlook does not have enough permissions to write to the data files
Solution: this situation usually happens if you upgraded to Windows 7/8 while keeping your Outlook installation in place. To solve it, you have to take ownership on the data files by following these steps:http://technet.microsoft.com/en-us/library/cc753659.aspx

3. Sending reported error (0x800CCC80): “None of the authentication methods supported by this client are supported by your server”

Description: the error message is triggered when you are trying to send an email from Outlook. The regular reason is:

·     Your outgoing mail server settings are wrong
Solution: edit your account settings and mark the option “Log on to incoming server before sending mail”. To reach this option, go to your Outlook File menu -> Account Settings -> double click on your email account -> More Settings -> Outlook Server -> mark the option “My outgoing server (SMTP) requires authentication”, then mark the option “Log on to incoming server before sending mail”. You can also try to use the “Repair” option available on your Account Settings window.

4. Outlook error code 8: “Outlook is unable to connect to the proxy server”

Description: the error message is triggered when you are trying to send or receive emails from Outlook, through a proxy server. The regular reasons are:

·     Your Windows root certificates are outdated
Solution: open Windows Update and look for updates to the Root Certificates list. Mark these updates and install them.

·     You are using a self-signed certificate
Solution: by default, a self-signed certificate is added to the Intermediate Certification Authorities. You have remove it from there, then import it to the Trusted Authorities list.

Here is a step by step tutorial on how to add a Certificate to Windows.

5. Task reported error 0x8004210A – “the operation timed out while waiting for a response from the receiving server”

Description: the error message is triggered when you are trying to send or receive emails from Outlook. The regular reasons are:

·     Your connection to the mail server is too slow
Solution: try freeing up your Internet connection by closing downloads or other in-progress online activities. If the problem persists, try to increase your mail server time out periods: go to the Outlook File menu -> Account Settings -> double click on your email account -> More Settings -> Advanced -> increase your server timeouts period.

·     You are sending or receiving large series of emails or a really large email attachment
Solution: if you are sending or receiving a large email attachment, your email account remains locked while the operation is performed. If this operation takes more than your automatic Send & Receive periods, the next Send & Receive job will start while the previous one was not completed it. In this case, the mail server will time out or it will respond with error 0x8004210E: “Your mailbox is already locked”. To solve it, simply wait for the large email to be sent or received. Alternatively, if your email account offers web access, connect to your mailbox from your Internet browser and delete those incoming messages that are not important. This way, you will ease your Outlook Receive task.

·     Your incoming / outgoing emails are being scanned by an anti-virus
Solution: On some occasions, an email anti-virus may interrupt or delay your Outlook Send & Receive process, causing Outlook to wait too much for the emails to arrive or to be sent. Disable your anti-virus for this operation. If the problem persists, contact your anti-virus provider.

·     The Outlook Send & Receive job is being blocked by a firewall
Solution: A firewall may prevent Outlook from reaching your mail server, so please disable your firewall (or add Outlook to its allowed/white list).

MailServer Errors:Best practice

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Serial and Parallel Battery Connections

Battery packs achieve the desired operating voltage by connecting several cells in series, with each cell adding to the total terminal voltage. Parallel connection attains higher capacity for increased current handling, as each cell adds to the total current handling. Some packs may have a combination of serial and parallel connections. Laptop batteries commonly have four 3.6V Li-ion cells in series to achieve 14.4V and two strings of these 4 cells in parallel (for a pack total of 8 cells) to boost the capacity from 2,400mAh to 4,800mAh. Such a configuration is called 4S2P, meaning 4 cells are in series and 2 strings of these in parallel. Insulating foil between the cells prevents the conductive metallic skin from causing an electrical short. The foil also shields against heat transfer should one cell get hot.

Most battery chemistries allow serial and parallel configuration. It is important to use the same battery type with equal capacity throughout and never mix different makes and sizes. A weaker cell causes an imbalance. This is especially critical in a serial configuration and a battery is only as strong as the weakest link.

Imagine a chain with strong and weak links. This chain can pull a small weight but when the tension rises, the weakest link will break. The same happens when connecting cells with different capacities in a battery. The weak cells may not quit immediately but get exhausted more quickly than the strong ones when in continued use. On charge, the low cells fill up before the strong ones and get hot; on discharge the weak are empty before the strong ones and they are getting stressed.

Single Cell Applications

The single-cell design is the simplest battery pack. A typical example of this configuration is the cellular phone battery with a 3.6V lithium-ion cell. Other uses of a single cell are wall clocks, which typically use a 1.5V alkaline cell, as well as wristwatches and memory backup.

The nominal cell voltage of nickel is 1.2V. There is no difference between the 1.2V and 1.25V cell; the marking is simply preference. Whereas consumer batteries use 1.2V/cell as the nominal rating, industrial, aviation and military batteries adhere to the original 1.25V. The alkaline delivers 1.5V, silver-oxide 1.6V, lead acid 2V, primary lithium 3V, Li-phosphate 3.3V and regular lithium-ion 3.6V. Li-manganese and other lithium-based systems sometimes use 3.7V. This has nothing to do with electrochemistry and these batteries can serve as 3.6V cells. Manufacturers like to use a higher voltage because low internal resistance causes less of a voltage drop with a load.

Serial Battery Connection

Portable equipment needing higher voltages use battery packs with two or more cells connected in series. Figure 3-8 shows a battery pack with four 1.2V nickel-based cells in series to produce 4.8V. In comparison, a four-cell lead acid string with 2V/cell will generate 8V, and four Li-ion with 3.6V/cell will give 14.40V. If you need an odd voltage of, say, 9.5 volts, you can connect five lead acid, eight NiMH/NiCd), or three Li-ion in series. The end battery voltage does not need to be exact as long as it is higher than what the device specifies. A 12V supply should work; most battery-operated devices can tolerate some over-voltage.

Figure 1: Serial connection of four batteries 

Adding cells in a string increases the voltage; the current remains the same.

A higher voltage has the advantage of keeping the conductor size small. Medium-priced cordless power tools run on 12V and 18V batteries; high-end power tools use 24V and 36V. The car industry talked about increasing the starter battery from 12V (14V) to 36V, better known as 42V, by placing 18 lead acid cells in series. Logistics of changing the electrical components and arcing problems on mechanical switches derailed the move. Early hybrid cars run on 148V batteries; newer models have batteries with 450–500V. Such a high-voltage battery requires 400 nickel-based cells in series. Li-ion cuts the cell count by three.

High-voltage batteries require careful cell matching, especially when drawing heavy loads or when operating in cold temperatures. With so many cells in series, the possibility of one failing is real. One open cell would break the circuit and a shorted one would lower the overall voltage.

Cell matching has always been a challenge when replacing a faulty cell in an aging pack. A new cell has a higher capacity than the others, causing an imbalance. Welded construction adds to the complexity of repair and for these reasons, battery packs are commonly replaced as a unit when one cell fails. High-voltage hybrid batteries, in which a full replacement would be prohibitive, divide the pack into blocks, each consisting of a specific number of cells. If one cell fails, the affected block is replaced.

Figure 2 illustrates a battery pack in which “cell 3” produces only 0.6V instead of the full 1.2V. With depressed operating voltage, this battery reaches the end-of-discharge point sooner than a normal pack and the runtime will be severely shortened. The remaining three cells are unable to deliver their stored energy when the equipment cuts off due to low voltage. The cause of cell failure can be a partial short cell that consumes its own charge from within through elevated self-discharge, or a dry-out in which the cell has lost electrolyte by a leak or through inappropriate usage.

Figure 2: Serial connection with one faulty battery

Faulty “cell 3” lowers the overall voltage from 4.8V to 4.2V, causing the equipment to cut off prematurely. The remaining good cells can no longer deliver the energy.

Parallel battery Connection

If higher currents are needed and larger cells with increased ampere-hour (Ah) ratings are not available or the design has constraints, one or more cells are connected in parallel. Most chemistries allow parallel configurations with little side effect. Figure 3 illustrates four cells connected in parallel. The voltage of the illustrated pack remains at 1.2V, but the current handling and runtime are increased fourfold.

Figure 3: Parallel connection of four batteries

With parallel cells, the current handling and runtime increases while voltage stays the same.

A high-resistance cell, or one that is open, is less critical in a parallel circuit than in serial configuration, however, a weak cell reduces the total load capability. It’s like an engine that fires on only three cylinders instead of all four. An electrical short, on the other hand, could be devastating because the faulty cell would drain energy from the other cells, causing a fire hazard. Most so-called shorts are of mild nature and manifest themselves in elevated self-discharge. Figure 4 illustrates a parallel configuration with one faulty cell.

Figure 4: Parallel/connection with one faulty battery

A weak cell will not affect the voltage but will provide a low runtime due to reduced current handling. A shorted cell could cause excessive heat and become a fire hazard.

Serial/Parallel battery Connection

The serial/parallel configuration shown in Figure 5 allows superior design flexibility and achieves the wanted voltage and current ratings with a standard cell size. The total power is the product of voltage times current, and the four 1.2V/1000mAh cells produce 4.8Wh. Serial/parallel connections are common with lithium-ion, especially for laptop batteries, and the built-in protection circuit must monitor each cell individually. Integrated circuits (ICs) designed for various cell combinations simplify the pack design.

Figure 5: Serial/ parallel connection of four batteries

This configuration provides maximum design flexibility.

Simple Guidelines for Using Household Primary Batteries

·         Keep the battery contacts clean. A four-cell configuration has eight contacts (cell to holder and holder to next cell); each contact adds resistance.
 

·         Never mix batteries; replace all cells when weak. The overall performance is only as good as the weakest link in the chain.
 

·         Observe polarity. A reversed cell subtracts rather than adds to the cell voltage.
 

·         Remove batteries from the equipment when no longer in use to prevent leakage and corrosion. While spent alkaline normally do not leak, spent carbon-zinc discharge corrosive acid that can destroy the device.
 

·         Don’t store loose cells in a metal box. Place individual cells in small plastic bags to prevent an electrical short. Don’t carry loose cells in your pockets.
 

·         Keep batteries away from small children. If swallowed, the current flow of the battery can ulcerate the stomach wall.The battery can also rupture and cause poisoning.
 

·         Do not recharge non-rechargeable batteries; hydrogen buildup can lead to an explosion. Perform experimental charging only under supervision.

Simple Guidelines for Using Household Secondary Batteries

·         Observe polarity when charging a secondary cell. Reversed polarity can cause an electrical short that can lead to heat and fire if left unattended.
 

·         Remove fully charged batteries from the charger. A consumer charger may not apply the optimal trickle charge and the cell could be stressed with overcharge.

Serial and Parallel Battery Connections

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How To Prevent Windows 7 Local Account Users From Changing Internet Settings

You may know that Windows 7 comes with an enhanced UAC (User Account Control) feature that regulates the access to user account profile folders, allowing local account holders to separately save their application settings, files and library folders, including Music, Documents, Videos, Pictures, etc. It doesn’t provide a convenient option to prevent local account holders from enforcing Windows 7 system-wide settings. For example, local user accounts, including standard account, can change the default screen resolution, modify DHCP settings (including primary & alternate DNS server address), default gateway and PC local IP. Many times, it happens that local account users change the DHCP settings while diagnosing internet connectivity issues, and modify the correct gateway, IP address and DNS server address. If you hold an administrator account on your home PC, you can prevent others from changing these settings. This post shows a simple way to prevent others from accessing internet/network configuration settings.

Since this method requires changing Windows default user account access options, you need to log into Windows as an administrator for restricting access to Network Connection Properties dialog. Using the Microsoft Management Console snap-in namely Local Group Policy Editor, you can change the default settings of numerous local group policy objects. To begin, type group policy or gpedit.msc in Start search and hit enter to open Local Group Policy Editor.

The Local Computer Policy is divided into two broad categories – Computer Configuration and User Configuration. First off, expand User Configuration, and then open Administrative Templates. Once opened, navigate to Network, and then click Network Connections to view all the related settings in main window. Now, find Prohibit access to properties of components of a LAN connection setting, right-click it to select Edit option.

It will show the default settings in a separate dialog. Now, check Enabled button, which is present adjacent to comment box. Once done, click OK.

Enabling this setting will prevent standard account holders from accessing Network Connections Property dialog. However, if you want to disable the Properties button, open Prohibit access to properties of a LAN connection setting from Local Group Policy main window, and then check Enabled button to completely disable the Properties button of internet connection.

When standard account holder attempts to access the Network Connection Dialog, it will deny the access to connection properties dialog.

In case you’ve enabled prohibit access to properties of LAN connection option, standard user account holders will see an inactive (greyed-out) Properties button.

These settings will help you prevent other account holders of your home PC from changing the internet connection settings. It must be noted that local account users will still be able to connect to internet/local network, view the details of active connection from Network Connection Details dialog, and diagnose the internet connectivity issues.

Prevent User to Change Network Settings

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