digitalocean email server

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, the vast majority of emails are forwarded internally, the result is a problem. No matter whether the email is sent internally or not, the

It took almost two days to configure the mail server under CentOS7. There are too many hardships, it must be summed up.The purpose of this article is to build a Dovecot + postfix + SSL server under CentOS 7 with a series of configurations, and to send and receive mail through the mail client (airmail in this article). ¶ Prerequisites You have to have a mainframe or a VPS.You have a primary domain name lik

Use the SQL Server database email service for monitoring and warning. Background More and more enterprises and companies require 7x24 database monitoring. Generally, third-party platforms are used to monitor and remind emails and text messages. A few days ago, the company launched a new server, eager to deploy the program before it can build other related platfor

This document is intended for beginners of iptables. If you have just learned the principles and basic syntax of iptables, but you still do not know how to actually use this tool in the online server environment, read this article. Iptables's two main modes of work for iptables data packets, there are several flows: PREROUTING → FORWARD → POSTROUTING IptablesBeginner. If you have just learned IptablesBut it is not clear how to actually use this tool i

Article Title: Application tips: How to Prevent email servers from being abused. Linux is a technology channel of the IT lab in China. Some basic classification email servers, such as desktop applications, Linux system management, kernel research, embedded systems, and open source, play a very important role on the Internet. SMTP (Simple Mail Transfer Protocol) is a commonly used protocol for

Such as question? In addition, I have another question: why can I send emails directly in linux? If this is the case, which PHP can directly execute the shell command when sending an email? Why do I need an email server? Such as question? In addition, I have another question: why can I send emails directly in linux? If this is the case, which PHP can directly exe

Since the birth of the Internet, spam has accompanied each other. Especially with the popularity of online shopping, spam has become increasingly popular, anti-Spam is a waste of time on users' mailbox capacity, leading to property loss. Therefore, anti-spam has always been one of the top priorities of email system service providers, it is also one of the indicators to determine whether an email

and use formulas to standardize scripts, which will be of great help to our future work. In this section, we compile a simple iptables syntax rule for mail host protection. The network topology is very simple. the IP address of the iptables machine is 192.168.1.101/24, and the IP address of the other machine is 192.168.1.102. Common email host protection script The normal mail host protection script is easy to implement. The mail host mainly opens tw

When a new account uses table Tigger to call database mail to send an email, the following error occurs: MSG 229, Level 14, state 5, procedure sp_send_dbmail, line 1, execute Permission denied on Object 'SP _ send_dbmail ', database 'msdb', schema 'dbo '. This is because the current SQL Server login account (LOGIN) does not have the permission to send database emails in the MSDB database. You need to join

The role of mail service in the network is becoming more and more important. Whether on the Internet or within the LAN, users are used to using e-mail to handle daily work. More and more enterprises and organizations are eager to have their own internal email servers to enhance information exchange between employees. So how should we implement it? This article will introduce the establishment and application process of the internal

To prevent unauthorized use of the Postfix email server, the server uses it to send forged spam messages. The following experiment is conducted and SMTP verification is added. Analyze SMTP sendingRemove the internal IP address from the trusted network of the email, and then test the mail sending (relying on the mail

LINUX Mail Server SETUP-Linux Enterprise Application-Linux server application information. For details, refer to the following section. 1. Run the following command to check whether sendmail is installed: [Root @ mail/root] # rpm? Qa | grep sendmail Sendmail-8.11.0-8 2. Uninstall sendmail: [Root @ mail/root] # rpm-e sendmail? Nodeps 3. Run the following command to kill the Running sendmail process: [Root @

Postfix + courier-IMAP: Use Postfix to build an email server in Ubuntu Http://blog.csdn.net/bird_wang/article/details/4225113 Postfixbasicsetuphowto Https://help.ubuntu.com/community/PostfixBasicSetupHowto Courier-imap + squirrelmail: Use squirrelmail in Ubuntu to set up WebMail Http://blog.csdn.net/bird_wang/article/details/4228222 Squerrilmail introduction and installation Configuration Http://blog.csdn.