Upgrading to 64-bit IceWarp Messaging Server
General Requirements Make sure that all web server extensions are set to FastCGI in IceWarp Administration Console - Web - Default - Scripting. Upgrading MSSQL Setup 1. It is necesary to configure...
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The setup hangs on Directory Cache populating
Please follow this workaround in the case if the installation process hangs on creation of Directory Cache database. Unfortunately, there is a conception problem with upgrades from older versions,...
View ArticleKaspersky: Messages Stop Being Processed By SMTP
We have discovered that Kaspersky changed the antivirus engine and does not respect the old engine when pushing new updates to IceWarp Server. This may lead to conflicts between the update data and the...
View ArticleVulnerabilities in IceWarp Server 10.4.5
We have been recently reported about vulnerabilities in IceWarp Server 10.4.5. There have been 2 types of potential issues: 1. the more problematic one (but quite difficult to misuse) in html/rpc...
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How to Run IIS and IceWarp on the Same Server
How to Run IIS and IceWarp on the Same Server Starting with version 10.1.2, the default port for Web service is 80 (HTTP) and 443 (HTTPS). These ports are the same as Microsoft's Internet Information...
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Preventing Backscatter in IceWarp
Backscatter has become increasingly harmful because many servers are now listening and querying backscatter lists before accepting email. With this now being seen and becoming more common place it is...
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Increasing Performance By Using "Small File Caching"
IceWarp is almost completely database driven with the main exception of the actual mail files themselves. In larger mail stores this can lead to a higher disk I/O as the mailboxes are being loaded...
View ArticleUsing SmartAttach From Outlook or Other Email Clients
In version 10 there was an addition called SmartAttach. This feature allows users to send attachments up to 2GB in size. This is done by stripping the attachment and caching this in the GroupWare...
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Mailer SMTP Authenticate Error
In version 11 on the newly designed WebClient interface there is a new option for users to contact the administrator. Administrators have control to hide this option if they wish. If they allow it...
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How to Enable HTML5 Notifications
Google Chrome 1. Click the icon left to the adress in navigation bar 2. Select "Notifications" 3. Choose "Always allow on this site" Mozilla Firefox 1. Click the icon left to the adress...
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Configuring Dropbox for Webmail
Dropbox Integration With the release of version 11 of the IceWarp Messaging Server customers will now have the ability to retrieve and send files from their existing Dropbox account. When composing a...
View ArticlePatch for OpenSSL Heartbeat Bug
Major vulnerability CVE-2014-0160 has been discovered in the open-source OpenSSL library TLS extension, which allows attackers to obtain server private keys, and thus decrypt sensitive data in SSL...
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How to best maintain daily database backups
It's not possible to use the Icewarp backup tool and have the name changed automatically for database backups. This means that each backup will overwrite the last. The backup of the Icewarp...
View ArticleHotfix for multiple OpenSSL vulnerabilities (CVE-2014-0224, CVE-2...
We are aware of the OpenSSL advisory posted June 5th regarding these vulnerabilities: SSL/TLS MITM vulnerability (CVE-2014-0224) An attacker using a carefully crafted handshake can force the use of...
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IceWarp VoIP Essentials
There are few things which are important when configuring IceWarp VoIP service wich covers features like Online Conferencing, WebPhone and all the related IceWarp VoIP features. 1) VoIP ports 5060...
View ArticleCannot install version 11.1.0.x on RHEL5 or CentOS5 (package wkht...
Installation of version 11.1.0.x is sometimes not allowed by the operating system. The problem is caused by one a package wkhtmltox which has not been digitally signed. In that case you will see the...
View ArticlePOODLE Security Vulnerability
A major vulnerability named POODLE has been discovered in the open-source OpenSSL library, a common workaround used in many current internet browsers. When there's a connection error during SSL session...
View ArticleIceWarp Security Update – Version 11.1.2
IceWarp Server 11.1.2 addresses a critical security vulnerability in WebClient. Security Advisory In our continued efforts to keep our products on the highest security level, IceWarp regularly scans...
View ArticleThe digital signature verification failed on Windows 2003 SP2 / X...
Symptoms: You have installed Windows 2003 SP2 32-bit version and during installation process of IceWarp server you’ll get this error message: "The digital signature verification failed. Please make...
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Dual authentication in webclient
Dual authentication is new feature for better security of your server-client connection. It is very usefull if you want to protect your mail server from unauthorised access to your webclient, EAS...
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Domain Administration Rights - adminperm.dat
A full administrator can restrict the rights of other administrators (full and domain administrators) such that they will not be able to modify certain properties. Some examples which come to mind are:...
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How to filter services used by users
To filter which users has activated or deactivated services in IceWarp Server Administration Console under Domains & Acounts- users - policies tab you can follow bellow suggested example of sql...
View ArticleHow to export calendars and contact from IceWarp to ICS and VCF F...
1. Copy the file export.php to directory "icewarp/html/webmail". 2. Enter this url to your web browser "yourdomain.com/webmail/export.php" 3. Enter the name of the domain and click on the button...
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Exporting blacklist/whitelist
To export all blacklisted addresses from your database via IceWarp Server Administration console: 1) connect the integrated SQL Manager with your Anti-Spam database 2) write your appropriet query:...
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Security Alert (A15-06-04): Multiple Vulnerabilities in OpenSSL
Regarding the OpenSSL vulnerability issues covered by Security Alert (A15-06-04) please upgrade openssl libraries in your system. In order to that follow the procedure described further below....
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Configuring SSO (Single Sign-on)
The following must be done on both the domain controller and IceWarp Server: create type A record in your DNS for the URL of webmail (i.e. mail.xmigrator.com) create a “link” user in ActiveDirectory...
View ArticleGenerating user certificates with openssl
Following article is about generating user certificates for signing or encryption emails of user on your mail server. If you will create your own CA authority, you can import them to users web browser...
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Post-migration processes
First of all, before starting migration process it is needed to read the guide on our website (http://dl.icewarp.com/documentation/server/tools/IceWarp_Migrator_Guide.pdf) by this guide you could find...
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MySQL - how to alter tables from MyISAM into InnoDB?
For MySQL and MariaDB databases, it is recommended to use the InnoDB engine (or XtraDb for MariaDB). It is NOT recommended to use the MyISAM engine. InnoDB: Row-level locking. Having a more fine...
View Articleauto-subscribe/unsubscribe from mailing lists
In case you are using lot mailing lists with expected frequent change of subscribers amount, following scenario might be helpfull for you. Its written for separate mysql database called e.g....
View ArticleOutlook Address Book Connected to LDAP
When adding the LDAP server to Outlook follow the steps below. 1. Enter the server name. 2. Check the box This server requires me to log on. 3. Fill in the Username: cn=admin and password from the...
View ArticleDirectory Sync - filter to sync only objects marked with an attri...
Directory Sync - filter to sync only objects marked with an attribute An administrator may want to bring in objects from AD, regardless of what OU they are stored in. You can add an attribute to the...
View ArticleThird party certificates in 11.4.1
With version 11.4.1 third party certificates have to be merged manually. Open the IceWarp Console. Go to System > Certificates > Server Certificates > Add/Create. Select Request Authority...
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Webclient Dual Auth Certificator
IceWarp Webclient Dual Auth Certificator was written to automatically create client p12 password encrypted certificates for webclient dual authentication, email signing or encryption. Usage: 1)...
View ArticleConvert IW DB's to specific Character set
In case you are facing following errors in error log: SYSTEM [49E8] 04:53:30:688 DB lib Error executing query: Incorrect string value: '\xF0\x9F\x94\xA8' for column 'SndSubject' at row 1, SQL:...
View ArticleSpam reports show "Skin directory does not exist: default"
Subject: Spam reports show the following error "Skin directory does not exist: default" Affected version: 11.4.3 Resolution scheduled for: 11.4.4 Description: When accessing spam reports an error is...
View ArticleHow to migrate from Zimbra to IceWarp
While migrating from Zimbra emails can be migrated via icewarp integrated migrator or any imap based migrator, the only problems are events and contacts, therefore its required to export all users...
View ArticleCertificate creation via remote console on Linux will generate em...
Subject: Certificate creation via remote console on Linux will generate empty .CSR file Affected version: 11.4.2. and 11.4.3 Resolution scheduled for: 11.4.4 Description: If remote console is used for...
View ArticleActive Sync and Outlook 2013
Limitations of Outlook 2013 Exchange ActiveSync account You cannot synchronize your email rules from IceWarp. You cannot create additional contact, calendar, or task folders. Global Address List does...
View ArticleNot possible to create a CSR with a certificate validity other th...
Subject: Not possible to create a CSR with a certificate validity other than 1 year Affected version: 11.4.4. Resolution scheduled for: 11.5 Description: Not possible to create a CSR with a certificate...
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Unable to open socket
Wen you will send attachment via Instant Messaging and an Error message will show up Please add to SOCKS service your server IP in administration console -> System / Services / General tab - SOCKS...
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IE 11.0.43 printing issue in IceWarp server version 12
In the case when you are not able to print Email content from IE 11.0.43 and you are seeing Error 404 Not Found. Replace by attached file content in /icewarp/html/webmail/client/inc/ (for Windows...
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IE 11.0.43 printing issue in IceWarp server version 11.4.x
In the case when you are not able to print Email content from IE 11.0.43 and you are seeing Error 404 Not Found. Replace by attached file content in /icewarp/html/webmail/client/inc/ (for Windows...
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How to block Spoofing
In some cases spambots may use a technique where the “SMTP From:” is different from “Sender” to mask the spoofed messages. See the example of SMTP session: 220 127.0.0.1 ESMTP IceWarp 10.4.5; Thu, 04...
View ArticleGroup Rules
Subject: rule for specific group X rule for specific group with Domain Alias Affected version: 12.0.2 Resolution scheduled for: n/a Description: recently are not working Rules for Groups without...
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