external smtp server free

In LINUX, sending emails via external SMTP (directly abandoning sendmail and postfix). as for how troublesome the sentmail and postfix configurations are, the old man will not talk nonsense here... it takes N hours for the old man to complete the

I. PrefaceIi. Basic Knowledge1. What is an IP address?2. What is a fixed IP address?3. What is a dynamic IP address?4. What is a domain name? What makes a domain name?5. What are subdomain names and second-level domain names?6. What is DNS?7. What

Symptom description:Email server A and email server B are set at the front-end. After the front-end receives the email, it is delivered to the mailbox in the backend server. After receiving the external email, the front-end cannot deliver the email

Original blog address: http://dagai.net/hmailserver/ The company purchased the enterprise Post Office to provide email services to its employees, so there is no problem in sending and receiving external emails, but there is a very bad place,

Learn from the beginning (Novice must Read) (reprint) (a dream of floating) Literacy Articles What is a proxy server? Proxy server is a server between the browser and Web server, when you surf the Internet through a proxy server, the browser is

Add your own online materials ====================================== 1. Apache configuration (available) The core configuration file of Apache is "httpd. conf ", which is located in the Apache installation path/CONF/on the computer. If it is

Linux server cluster system-Linux Enterprise Application-Linux server application information. The following is a detailed description. This article mainly introduces the architecture of the LVS cluster. Firstly, the general architecture of the LVS

LVS cluster architecture This article mainly introduces the architecture of the LVS cluster. Firstly, the general architecture of the LVS cluster is given, and the design principles and corresponding features are discussed. Finally, the LVS cluster

I. Exchange 2000/2003 Server series course video 1. Exchange Server Data Protection Best Practices (Speaker: Hu Yi) : Http://www.5dmail.net/down/SoftList-964.htm Lecture content: Ideally, exchange won't have any problems at all. However, we live in

Automatic update. Check the version number of the external program. Administrator permission. Multiple startup prohibited. code obfuscation, version number permission Automatic update. Start program a. Check the version number of program B. Then