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Kerio Control Require3WayHandshake dropping packets A Kerio Control 3110 replaces an old SonicWall. Immediately we saw problems with dropped packets: packet dropped: 3-way handshake not completed

Title Date Comments
Rate Limited by Google Bulk Email Senders Guidelines   2014 12 
- Google may see your email as spam and tell you you are Rate Limited by Google Bulk Email Senders Guidelines -
Mailbox item count issues   2014 12 
- Too many messages in startup folders slows down everything -
Instant Messaging Error messages with IM services not enabled   2014 12 
- Error messages in log about Instant Messaging even though IM services are not enabled -
Kerio Archiver   2014 12 
- Kerio Archiver - a simple tool for archiving large user mailboxes -
Upgrade Kerio Connect to 64 bit   2014 12 
- Upgrading Kerio Connect to 64 bit is not difficult, but on Windows OS there are extra steps -
IMAP Tools   2014 12 
- IMAP Tools - an inexpensive collection of tools for mail -
Using Antivirus programs with Kerio Connect   2014 12 
- Using Antivirus programs with Kerio Connect -
Kerio Control Certificate is not valid yet   2014 12 
- Kerio Control Certificate is not valid yet -
Kerio Connect 8.4   2014 12 
- Kerio Connect 8.4 concentrates on Webmail but also introduces multiserver -
Hacked at my own site   2014 11 
- Well, not really hacked but a password exposed and that's pretty bad! -
Better Spam Control   2014 11 
- Better Spam Control - Spamassassin won't cut it today -
Kerio Control 8.4   2014 11 
- Kerio Control 8.4 guest network is helpful and not just for guests -
Samepage - Redefining how people create and share information
Kerio Troubleshooting January 2014   2014 01 
- Looking at some Kerio related troubleshooting/support incidents from last month. -
Understanding Kerio Control Content Filtering   2013 12  2013/12/18 anonymous
- It's easy to become confused when adding rules for Kerio Connect content filtering. Here's some basic advice. -
Protect against unauthorized use with Kerio Connect User Access policies   2013 12  2013/12/12 TonyLawrence
- Kerio Connect User Access policies can help protect you from unauthorized mail use. -
Linode hosting for Kerio Connect   2013 11 
- Using Linode.com for self hosting Kerio Connect mail server or other services. -
Restoring a lost public folder in Kerio Connect   2013 09 
- How to restore a lost public folder in Kerio Connect -
How to choose a mail server for your small business   2013 07 
- Email is close to absolute necessity for any business today. How you handle email is important. Do you want your company to be "[email protected]"? Probably not. -
Is VoIP Telephone service right for you or your business?   2013 07  2013/12/11 BigDumbDinosaur
- From Magic Jack to full blown PBX systems, VoIP is a technology that might save you money and definitely can offer desirable features. -
Kerio Connect KOFF vs. KOC   2013 07 
- Kerio Connect offers two versions of its Outlook Connector, KOC and KOFF. Why would you use one vs. the other? -
Handling Kerio Connect attachment blocking   2013 07 
- If you get a lot of junk attachments but still need some customers to send files, what can you do? Here is a simple solution. -
The boss lost some email!   2013 07  2014/06/06 TonyLawrence
- Oh, that can't be good! If the boss has lost some of his email, here are your options. -
Monitoring Kerio Connect for suspicious activity   2013 07 
- If you suspect that user's email has been compromised, here is a script that can help. -
Packet Dump in Kerio Control   2013 07 
- Packet Dump used to be a hidden option in Kerio Control and you needed ssh to get the logs or even to remove them. That's no longer the case.` -
IPS in Kerio Control   2013 07 
- You may never have even looked at IPS in Kerio Control or ever need to. It's there when you need it, though. -
DNS Forwarding in Kerio Control   2013 07 
- DNS Forwarding in Kerio Control can be pretty powerful stuff. Learn its ins and out here. -
Who's been reading my email?   2013 07  2013/07/02 DaveGillam
- The boss noticed that some emails he did not read were marked as read - who was responsible? -
An unusual DNS issue   2013 07 
- An unusual DNS issue threatens a paycheck -
Getting a list of recursive SPF records   2013 06  2013/06/28 TonyLawrence
- Should Kerio Connect have a function to automatically whitelist a valid SPF check? I think maybe they should. -
How to share folders and calendars with the Kerio Outlook Connector   2013 06  2014/05/14 conrad
- There is the obvious way, but that's completely wrong. Learn how to share and subscribe correctly. -
Important changes coming in Kerio Control   2013 06  2013/09/21 TonyLawrence
- The 8.1 release of Kerio Control contains a number of important new features. Some require a bit of explanation. -
Why Kerio should implement Milters   2013 06  2014/04/04 anonymous
- Why Kerio should implement Milters or something very much like it -
Monitoring a user's email   2013 06 
- How to monitor employee's email activity with Kerio Connect -
Using Samepage for off-site backup   2013 06  2013/06/21 TonyLawrence
- Although this is a trivial use and is not a substitute for true system backup, using Samepage for individual files does have advantages. -
Websockets and Kerio Control   2013 06 
- How to set your Kerio Control proxy to work with websockets -
Advanced Search features in Kerio Connect Webmail   2013 06 
- The Kerio Connect Webmail Client has some advanced search features you may not have noticed. -
How to upgrade Kerio Connect Mail Server   2013 06 
- Most of the time, upgrading Kerio Connect is simple and quick. Here is some help when it isn't. -
E-Mail to everyone in your Kerio Connect domain   2013 06 
- Multiple ways to have an 'everyone' address without getting spammed -
Hosted vs. On Premise Email   2013 06  2013/06/28 TonyLawrence
- Hosted email makes sense for some, but there are disadvantages to consider. -
X-Envelope-To: vs. To:   2013 06  2013/06/14 TonyLawrence
- How did my customer get email apparently addressed to someone else's domain? -
Kerio Control Connection Limit Reached Alert   2013 06 
- While this alert might indicate suspicious activity, it might just be something simple that you forgot about. -
Multiple Spam folders with Kerio Connect   2013 06 
- A poorly documented feature in Kerio Connect allows you to sort out spam biy its Spam score. -
Whatever happened to Winmail.dat issues?   2013 06 
- It's been a few years since I've seen a winmail.dat attachment or had someone ask about one. -
Creating Contact Groups from Mail Groups   2013 06 
- Contact Groups have advantages over Mail Groups. Here's how to convert them. -
Unsupported use of KMSRECOVER for moving Kerio Connect   2013 06 
- Although this seems to be unsupported by Kerio, it appears that you can use this method when transferring Kerio Connect to new hardware. -
Kerio Connect Contact Groups instead of Mail Groups for internal use   2013 06 
- Contact Groups (Distribution Lists) offer several advantages over Mail groups. You might consider transferring some or all of your groups to this format. -
Kerio Connect Mailserver.cfg warning   2013 06  2013/06/05 TonyLawrence
- Warning: the Kerio Connect mailserver.cfg.bak file is NOT what you probably think it is! -
Exposing hidden data (API method)   2013 06 
- A simple API script to expose group membership to local users. -
Exposing hidden data to users   2013 06 
- A simple script to expose group membership to local users. -
Kerio Support now 24 x 7   2013 05 
- Kerio now offers English language support round the clock. Nothing changes for my customers, however. -
Kerio Connect Mailserver
Don't make this mistake in your firewall rules   2013 05  2013/05/20 TonyLawrence
- A name is not a rule, and other things you need to understand about url filtering -
Instant Messaging in Kerio Connect   2013 05  2014/06/25 TonyLawrence
- At first I thought adding Instant Messaging to a mail server was utterly pointless. However, it really isn't. -
Checking DNS Black List Usage on Kerio Connect   2013 03 
- Examining blacklist usage can help you fine-tune your spam fighting tools on Kerio Connect. -
Operator CDR records   2013 02  2013/02/25 TonyLawrence
- Sending Operator CDR data to an auditing machine should already be part of Operator, but isn't. This code provides the function. -
Transferring a Kerio Connect Server with rsync   2013 02  2013/07/03 TonyLawrence
- One particular advantage of using rsync is that you can transfer most of the data without shutting down your existing server. -
Group Voicemail in Kerio Operator   2013 02 
- How to enable group voicemail when using Connect/Operator Integration -
Kerio Samepage - Concerns and Promise   2013 02  2014/07/03 TonyLawrence
- Why Kerio has replaced Workspace with Samepage and why it matters -
Disaster Planning for Kerio Connect Mail Server   2013 02 
- What can you do to ensure email continuity in the event of a disaster? -
Transferring from Kerio Connect to another mail server   2012 12  2014/04/07 TonyLawrence
- While I never like losing a customer, sometimes people want to move away from Kerio Connect. That's not hard to do. -

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