Mail ServersCategory

Introduction Nagios is an open-source IT system monitoring tool. It sends alerts when critical infrastructure components fail and recover, providing administrators with notice of important events Prerequisites Implementation (1) Define email notification commands$ vi /usr/local/nagios/etc/objects/commands.cfg ======== Add /edit the below lines # ‘notify-host-by-email’ command definition define command { command_name   … Continue Reading How to enable email notifications for the Nagios alerts

Introduction SSL is the standard technology for securing an internet connection by encrypting data sent between a website and a browser (or between two servers). It prevents hackers from seeing or stealing any information transferred, including personal or financial data Prerequisites Implementation Step 1: Log in to the Plesk Panel as… Continue Reading How to set up SSL (Let’s Encrypt) for a Plesk mail server

I got the above error when I am executing the bash script with mail command. In the scripts you use -a in the mail commands to attach the logfile. This does not function and results in an error that an invalid header is being added to the mail. Looking in… Continue Reading Invalid header: /var/log/rkhunter.log

How to create Sending API for domain in Mailgun Date: 09-01-2021 Step 1: Login to the mailgun portal Step 2: Click on Domains under the Sending section on the left side. Select the domain in which you wish to create a sending key. Step 3: Click on Domain Settings and navigate to… Continue Reading How to create Sending API for domain in Mailgun

Please find the below steps in configuring the SMTP Gsuite relay service: 1) Disable 2 factor. You can check the below link to disable the 2factor. https://support.google.com/accounts/answer/185833?hl=en 2) Turn on Less secure apps. Please find the below link to turn on.https://myaccount.google.com/u/1/lesssecureapps 3) Sign-in to you google admin console using administrator… Continue Reading Mail Configuration using the SMTP Gsuite relay service

How To Integrate SendGrid With Postfix Step : 1 Edit the file /etc/postfix/main.cf smtp_sasl_auth_enable = yessmtp_sasl_password_maps = hash:/etc/postfix/sasl_passwdsmtp_sasl_security_options = noanonymoussmtp_sasl_tls_security_options = noanonymoussmtp_tls_security_level = encryptheader_size_limit = 4096000relayhost = [smtp.sendgrid.net]:587 Save and close the file. Step : 2 Edit the file /etc/postfix/sasl_passwd [smtp.sendgrid.net]:587 yourSendGridUsername:yourSendGridPassword Add your sendgrid user name and password, you… Continue Reading How To Integrate SendGrid With Postfix

Please find the below steps of send mail configuration. 1) Install Sendmail with the below command.apt-get install sendmail sendmail-cf2) Please check for saslauthd service, if it is not there on the server then install it with the below command.apt-get install sasl2-bin3) Go to vim /etc/default/saslauthd and keep “start=yes”(by default it… Continue Reading Sendmail Configuration – SMTP relay with port 587

Setup Postfix with Mailgun for reliable E-Mail Delivery on Ubuntu Date: 24-08-2020 Install Postfix: Postfix is a mail transfer agent (MTA) which is the responsible software for delivering & receiving emails, it’s essential in order to create a complete mail server. Step 1: Login to the server by using ssh. As… Continue Reading Setup Postfix with Mailgun for reliable E-Mail Delivery on Ubuntu

HOW TO REMOVE THE ENTIRE MAIL QUEUE IN MANUAL WAY DATE: 29/01/2019 Execution steps to remove the entire mail queue in a manual way. The manual way to remove the entire queue is as follows Step 1: Change directory to spool Execute the following command line in your terminal Step… Continue Reading HOW TO REMOVE THE ENTIRE MAIL QUEUE IN MANUAL WAY

How To Fix postfix delayed mail delivery Date posted : 31/05/2019 In this article, we’re going to explain about resolving the delayed mail deliveries. Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. For instance, we’ve faced issues where mails from our server to gmail was received successfully. However mails… Continue Reading How To Fix postfix delayed mail delivery