Solving the issue of slow mail sending

Problem on the corporate mailing list server

E-mail messages on ukr.net slowly began to leave. As it turned out from the correspondence with their support, they have changed a number of rules for receiving mail

Work results
- A flexible, scalable system for delivering letters to different mail providers with smtp restrictions on the input has been received
- Consumed resources CPU / RAM increased slightly
- Slightly more difficult to administer the system

#administration #sysadmin #mail #Windwos #linux #freebsd #mail #postfix #MySQL #mariadb #terminal #nginx