Kerio Connect - Administrators Guide - Kerio Software Archive

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Configuring anti-spoofing in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100About anti-spoofing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100Configuring anti-spoofing in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100Enabling anti-spoofing per domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101Password policy in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103About password policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103Creating strong user passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103Requiring complex passwords (for local users) . . . . . . . . . . . . . . . . . . . . . . . . . . 104Enabling password expiry (for local users) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105Protecting against password guessing attacks . . . . . . . . . . . . . . . . . . . . . . . . . . . 106Authenticating messages with DKIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107About DKIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107Enabling DKIM in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107Configuring DNS for DKIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110Adding a DKIM record to your DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110Acquiring DKIM public key in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111Creating a short DKIM public key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111Configuring spam control in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115Antispam methods and tests in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . 115Spam score . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116Monitoring spam filter’s functionality and efficiency . . . . . . . . . . . . . . . . . . . . 117Spam filter statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117Graphical overviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118Configuring greylisting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119What is greylisting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119Configuring greylisting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119How greylisting works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120What data is sent to Kerio Technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121Blocking messages from certain servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122How to automatically block or allow messages from certain servers . . . . . . 122Blocking messages from spam servers — custom blacklists . . . . . . . . 123Blocking messages from spam servers — public databases . . . . . . . . 123Allowing messages from trusted servers — custom whitelists . . . . . 1248
Configuring Caller ID and SPF in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125What is Caller ID and SPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125How to configure Caller ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125How to configure SPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126Creating custom rules for spam control in Kerio Connect . . . . . . . . . . . . . . . . . . . . . 128Why to create custom rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128Creating custom rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128Defining actions for custom rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129Antivirus control in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130Antivirus in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130External antivirus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131Configuring Sophos in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131Configuring HTTP proxy server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132Filtering message attachments in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133Why to filter attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133How to configure attachment filter in Kerio Connect . . . . . . . . . . . . . . . . . . . . 133Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134Using external antivirus with Kerio products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135Antivirus SDK for Kerio products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135Configuring IP address groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136When to use IP address groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136How to configure IP address group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136Creating time ranges in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138What are time ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138Creating time ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138Public folders in Kerio Connect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139What are public folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139Creating public folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139Global vs. domain public folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139Assigning rights to create public folders . . . . . . . . . . . . . . . . . . . . . . . . . . 139Creating public folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140Viewing public folders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140Global Address List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1419
Page 2: © 2013 Kerio Technologies s.r.o.
Page 10: Configuring instant messaging in Ke
Page 14 and 15: Installing Kerio ConnectKerio Conne
Page 16 and 17: Installing Kerio ConnectNew install
Page 18 and 19: Upgrading Kerio ConnectWhat can be
Page 20 and 21: Upgrading Kerio ConnectUse this com
Page 22 and 23: Uninstalling Kerio ConnectDuring th
Page 24 and 25: Kerio Connect VMware Virtual Applia
Page 26 and 27: Kerio Connect VMware Virtual Applia
Page 28 and 29: Accessing Kerio ConnectFigure 1Admi
Page 30 and 31: Accessing Kerio ConnectKerio Connec
Page 32 and 33: Registering Kerio ConnectWhy to reg
Page 34 and 35: Registering Kerio ConnectInstalling
Page 36 and 37: Accessing Kerio Connect administrat
Page 38 and 39: Accessing Kerio Connect administrat
Page 40 and 41: Domains in Kerio ConnectInternet ho
Page 42 and 43: Creating domains in Kerio ConnectAd
Page 44 and 45: Connecting Kerio Connect to directo
Page 46 and 47: Connecting Kerio Connect to directo
Page 48 and 49: Renaming domains in Kerio ConnectWh
Page 50 and 51: Distributed domains in Kerio Connec
Page 52 and 53: Creating user accounts in Kerio Con
Page 54 and 55: Creating user accounts in Kerio Con
Page 56 and 57: Creating user groups in Kerio Conne
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Creating user groups in Kerio Conne
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Setting access rights in Kerio Conn
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Maintaining user accounts in Kerio
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Creating mailing lists in Kerio Con
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Importing users in Kerio ConnectWhe
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Importing users in Kerio Connect3.
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Exporting users in Kerio ConnectExp
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Creating aliases in Kerio ConnectFi
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Creating aliases in Kerio ConnectEx
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Configuring resources in Kerio Conn
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Monitoring Kerio ConnectMonitoring
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Monitoring Kerio Connect• interva
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Monitoring Kerio ConnectTo display
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Services in Kerio ConnectFigure 1Se
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Services in Kerio Connect• (HTTPS
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Protecting SMTP the server in Kerio
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Securing Kerio ConnectPassword poli
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Configuring anti-spoofing in Kerio
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Configuring anti-spoofing in Kerio
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Password policy in Kerio Connect3.
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Password policy in Kerio ConnectNot
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Authenticating messages with DKIMTo
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Configuring DNS for DKIMAdding a DK
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Configuring DNS for DKIMGenerating
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Configuring DNS for DKIMKerio Conne
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Configuring spam control in Kerio C
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Configuring spam control in Kerio C
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Configuring greylistingFigure 1Grey
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Blocking messages from certain serv
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Blocking messages from certain serv
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Configuring Caller ID and SPF in Ke
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Creating custom rules for spam cont
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Antivirus control in Kerio ConnectA
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Antivirus control in Kerio ConnectC
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Filtering message attachments in Ke
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Configuring IP address groupsWhen t
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Creating time ranges in Kerio Conne
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Public folders in Kerio ConnectCrea
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Configuring instant messaging in Ke
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Configuring instant messaging in Ke
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Configuring DNS for instant messagi
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Customizing Kerio ConnectDefining c
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Customizing Kerio Connect3. Open th
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Translating Kerio Connect client to
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Configuring data store in Kerio Con
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Archiving in Kerio ConnectWhat can
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Archiving in Kerio ConnectNo diacri
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Backups in Kerio ConnectFigure 1Arc
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Examples of data recovery in Kerio
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Examples of data recovery in Kerio
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Data recovery in Kerio ConnectRecov
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Data recovery in Kerio ConnectAbbre
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Data recovery in Kerio Connect• l
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Configuring SSL certificates in Ker
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Managing logs in Kerio ConnectWhat
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Managing logs in Kerio Connectcan,
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Kerio Open Directory ExtensionHow t
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Managing mobile devicesManaging mob
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Managing mobile devicesIt is not po
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Switching between Kerio Connect cli
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Kerio Connect — Legal noticesTrad
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Kerio Connect — Legal noticesBluf
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Kerio Connect — Legal noticeslibs
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Kerio Connect - Administrators Guide - Kerio Software Archive

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