Linux Tutorials on the topic “sendmail”

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  How to Install Radicale Calendar (CalDAV and CardDAV) on Ubuntu 20.04

  Author: Arvid L • Tags: email, linux, sendmail • Comments: 6 • Published: Sep 06, 2021

  Radicale is a free and open-source CalDAV (Calendars, to-do lists) and CardDav (contacts) server. In this tutorial, you will learn how to install and configure Radicale on Ubuntu 20.04.

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• Dockerizing LEMP Stack with Docker-Compose on Ubuntu

  Author: Muhammad Arul • Tags: linux, sendmail, ubuntu, virtualization • Comments: 23

  In this tutorial, I will guide you step-by-step to use docker-compose to create a LEMP Stack environment (LEMP = Linux - Nginx - MySQL - PHP). We will run all components in different docker containers, we set up a Nginx container, PHP container, PHPMyAdmin container, and a MySQL/MariaDB container.

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• On sending emails, I get the following error message: "Relaying denied".

  Author: Till Brehm • Tags: postfix, sendmail • Comments: 0

  There are two solutions for this problem: 1) You configure your MTA to allow authentication via SMTP (SMTP-Auth). Your users then have to change settings in their email clients (e.g. Outlook), i.e., they have to activate Server requires authentication. 2) You install "POP-before-SMTP" or poprelayd on your server. Your users then have to fetch emails first before they are allowed to send emails for a restricted period of time (mostly 30 min.).

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• How do I configure Sendmail for SMTP-Auth?

  Author: Till Brehm • Tags: sendmail • Comments: 0

  Some helpful links: http://www.sendmail.org/%7Eca/email/auth.html http://www.jonfullmer.com/smtpauth/ http://www.joreybump.com/code/howto/smtpauth.html http://server.1und1.com/root_server/bs/suse72/howtos/1.html http://info.ccone.at/INFO/Mail-Archives/redhat/Jan-2002/msg02936.html http://www.howtoforge.com/howto_sendmail_smtp_auth_tls

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