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Please make sure to meet the minimum system requirements described here: https://wwwdownloads.universal-messenger.de/knowledge-base/interndocumentation/doc-enuniversal-messenger/html/UM_DE/Installation/Voraussetzungen.html

Architectural considerations and preparation

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• Which license will you use?

  • Obtain a license file

• Will you use the embedded Apache Tomcat or will you use a manually installed one or the one provided by your Linux distribution?

  • If you are experienced in configuring and managing an Apache Tomcat installation – be it manually installed or provided and maintained by your Linux distribution – you are free to deploy your UM into such a Tomcat instance. This will also be the way to go if you need access to special configuration settings that are not accessible when using the embedded Tomcat (see Developer Manual / Embedded Tomcat which options can be set via cmsbs.properties).

  • Otherwise, we recommand using the embedded Tomcat that can optionally be installed with your UM. See Developer Manual / Embedded Tomcat.

• Which SQL database will you use?

  • Collect connection information and credentials

• How should the Universal Messenger send e-mailsEmails? Note that the UM itself is not an MTA but rather an MTU. It will always need an SMTP server or an external e-mail sending serviceEmail delivery provider. There are many considerations about which is the best way to send e-mails Emails in a way that it will not harm the MTA’s reputation, especially if you are planning to send a lot of e-mailsEmails.

  • Collect connection information and credentials before installation.

• Which e-mail Email address(es) will be used to send the e-mailsEmails, i.e. what will be the sender address in the e-mailEmail?

  • Collect e-mail Email addresses and sender names.

• If and how will you cope with bounces or auto-replies? Will you use a technical sender e-mail Email address (envelope sender) which will be able to receive bounces and auto-replies? If so, can the Universal Messenger connect to an IMAP mailbox to read those e-mailsEmails?

  • Collect technical sender e-mail Email address

  • Collect IMAP connection information and credentials

• Will the MTA for the technical sender e-mail Email address be able to use Variable envelope return path, i.e. an e-mail Email address which consists of a fixed part and a variable part.