Exchange 2016 receiving error message:

"Message or connection acked with status Retry and response 441 4.4.1 Error encountered while communicating with primary target IP address: ""Failed to connect. Winsock error code: 10061, Win32 error code: 10061."" Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint attempted was"

451 4.7.0 Temporary server error. Please try again later. PRX5 ,Duration(ms):1665

451 4.7.0 Timeout waiting for client input,


Cisco ASA ESMTP inspection is set to default inspection map. Make sure it’s turned off. Chances are the sender’s address length is greater than 320 or the body line length is greater than 998.

FlashForge 3D Printers, New Model: Finder

Great printer! The first one I received must have been a defect. The issues I had with the first one were:

1. The screen would shutdown in the middle of a long print.
2. The removable tray keeps popping out. I had to tape the tray in place so it wouldn’t pop-out or move in the middle of a job.
3. USB connection would constantly disconnect. I tried a different cable and had no success.
4. I could not get the filament to stick to the bed. Even the test cube did not come out square.

I received a replacement, and what a difference! I’m no longer having to unplug the unit for the screen to return. The removable tray now has a firm lock when it’s pushed in. No USB connection issues! And the included glue stick helps! The new one also has a thumb screw for leveling the bed, which is alot better than the black plastic nut it had before. The new one is very quiet, sometimes I cannot tell if it’s running. I also love how fast the extruder heats up. It takes less than a minute to heat up to 220 degrees. Great printer, I would highly recommend it!

Can You Use Inkjet Paper in a Laser Printer?

Everyone has done it, but the short answer is NO! especially glossy photo paper. Most inkjet papers have a special coating on them to help the paper absorb the right amount of ink. If the ink is allowed to sink too far into the paper it can “feather” or spread out, making the image look fuzzy. High quality inkjet paper are coated to keep the ink at an optimal level for crisp, clean prints from an inkjet printer.

Why Cell Phone Batteries Sometimes Explode

There are some basic precautions you can take to prevent your mobile battery from exploding…

Usually, these events are the result of a user doing something unwise. Modern rechargeable lithium-ion batteries are engineered to anticipate and combat thermal runaway—the feedback loop in which a battery can overheat and explode. The occasional incidents you hear about are when these protections have been compromised (or were never put in place by cut-rate manufactures in the first place).

Read More



msiexec.exe /qb- /i

cd “C:\Program Files (x86)\NpackdCL”

ncl detect

ncl search –q JRE

Disable Windows 10 Upgrade

This method seems to work best…

Method 1: Disable “Get Windows 10 Upgrade App” using Registry Fix

Download the fix at

Upgrading the IOS on a Cisco Switch

First remove the old IOS

delete /force /recursive flash:directory

Setup TFTP with Tftpd32

Run command on telnet


archive tar /xtract tftp:// flash:/c3560-ipbasek9-tar.150-2.SE8

Once completed

config terminal

boot system flash:c3560-ipbasek9-tar.150-2.SE8/c3560-ipbasek9-tar.150-2.SE8.bin

Show boot

show boot

Save the config and reload

wr mem


To verify the IOS

show version

To verify the boot

show boot


Maximum number of ActiveSync Devices

ActiveSync will only allow a default of 10 devices per mailbox.

To increase it to 50 devices, use this command in Exchange Management Shell

Set-Throttlingpolicy “Identity Name” -EasMaxDevices 50 -EasMaxConcurrency 50

Cisco Mailguard

Cisco mailguard blocking certain emails from Appriver; Does Not Allow Certain Commands over Telnet

Exchange 2010 Error:

451 4.7.0 Timeout waiting for client input

Cisco ASA Error:

Inspect: esmtp _default_esmtp_map, packet 286302, lock fail 0, drop 130, reset-drop 0, 5-min-pkt-rate 0 pkts/sec, v6-fail-close 0

mask-banner, count 1720

allow-tls, count 143

match cmd line length gt 512

drop-connection log, packet 0

match cmd RCPT count gt 100

drop-connection log, packet 0

match body line length gt 998

log, packet 85

match header line length gt 998

drop-connection log, packet 130

match sender-address length gt 320

drop-connection log, packet 0

match MIME filename length gt 255

drop-connection log, packet 0

match ehlo-reply-parameter others

mask, packet 227

command to disable default policy map on ASA:

policy-map global_policy

class inspection_default

No Inspect esmtp




Write Memory

Windows Vista lsass Error

Windows Vista crashes when network card is plugged in. “Windows has encountered a critical error and will restart”…

takeown /f c:\windows\system32\ncrypt.dll

icacls c:\windows\system32\ncrypt.dll /grant administrators:F

copy ncrypt.dll c:\windows\system32\ncrypt.dll