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Knowledgebase : Technical
All licenses purchased from IceWarp Asia-Pacific with Active Maintenance are entitled to FREE Telephone, Ticket and Live Chat technical support subject to the conditions detailed below. If your license has expired you should renew your maintenance to co...
WebDAV is used to configure synchronization of Contacts, Calendars, Tasks and Folders from a computer of mobile device. WebDAV is a web protocol which uses standard URLs for accessing remote resources, specifically calendars, tasks, contacts and folders...
Spambots and spammers often use a technique where the SMTP FROM: in the message header is different from the MAIL FROM to mask the spoofed messages. The example below shows a typical spoofed SMTP session; 220 127.0.0.1 ESMTP IceWarp 10.4.5; Thu, 04 Apr ...
TYPICAL SYMPTOMS * Missing emails and or folders in WebClient * Duplicate emails in WebClient * Unable to login to WebClient * New emails are visible in the storage and in your email client but missing in WebClient * When clicking on an email ...
In IceWarp you can set mail size limits at three levels; * GLOBAL Limit : Applies to all accounts within all domains * DOMAIN Limit : Applies to all accounts within the domain, overrides any global settings if set * USER Limit : Applies to the par...
NOTE : This best practice article is for IceWarp Server Version 11.1.x and below . If you are using IceWarp Server Version 11.2 or higher please use the NEW IceWarp to IceWarp Migration Utility. Before moving or migrating your IceWarp installation to a ...
NOTE : This best practice article assumes that you are using IceWarp Server Version 11.2.x or higher on both your current and new server. Both current and new server must be using the same IceWarp Version. If you are using IceWarp Server Version 11.2.x ...
SYMPTOMS Outlook Error Message - The UID of a message changed unexpectedly CAUSE The cause of this issue normally relates to an issue/inconsistency in generating mailbox notifications and having all clients receive them. Errors like these can occu...
In order to investigate issues, provide setup guidance or to troubleshoot reported problems, our engineer may require access to your server, database and other systems. We understand that this kind of access is sensitive, and are best kept to a need-to-...
The suggestions below will greatly help to minimise the chances of your server from being used as a spam relay agent but does not guarantee it will not happen. You should still use the Queue Monitor script to monitor the outgoing queues and notify you I...
A Service Level Agreement is a comprehensive network management and maintenance contract that allows you to budget for current concerns and future growth of your IT environment. An SLA eases this burden, allowing YOU to focus on moving your business forwa...
The Directory Cache is a database that is used to keep information about email boxes including their sizes and number of messages. The directory cache database is updated the moment any change is made to a mailbox. It is recommended that you manually forc...
Following are a list of ports required by all of IceWarp services. The incoming ports below should be opened on your firewall for the IceWarp server and all server to WAN connections should be open and not limited. For security reasons you should only o...
Apart from the your standard A Records, MX Records, SPF, DKIM, DMARC and ISP rDNS records the following SRV records should also be created for the corresponding IceWarp services that you will be using; _caldav._tcp.domain.com. 86400 IN SRV 10 0 80 target...