Home / Tag Archives: smtp

Tag Archives: smtp

July, 2010

  • 16 July

    How to Fix an Open Relay in Postfix

    postfix

    As I have been reiterating all week, an open relay is a bad idea. If your mail server is left open, anyone can use your SMTP service to send mail, and spammers will use it. This can result in your server being blacklisted and extraneous use of system resources that …

  • 15 July

    Mail Server Causing High Server Load

    Question: My CPU usage on my server is very high, and it seems to be originated from my mail server. What could be the problem? Answer: If your mail server is sucking up valuable CPU power, there are a couple of possibilities, none of which are pleasant. 1. You or …

June, 2010

  • 1 June

    PHP Mail Vs. SMTP Mailing Lists

    Whether your goal is marketing or simply communicating with your website’s online community, there comes a time when you need to send out a mass email. I am not suggesting you spam your customers or users. What I do suggest, however, is that you have some way of contacting people …

May, 2010

  • 17 May

    When You Are Accused of Spamming…

    Question: My web host has accused me of being a spammer and has suspended my account. How do I prove I am not a spammer? Answer: Usually, you will only be accused of spamming in one of three situations: (1) you actually are a spammer, (2) your account is hosted …

April, 2010

  • 2 April

    How to change the Postfix port number

    By default, Postfix, Sendmail, and other SMTP mail servers rely on port 25 to send email. Normally, this is fine and works for most situations. Some Internet Service Providers, however, disagree. They see port 25 as a prime port for spammer exploitation, and many have started to block it. If …

February, 2010

  • 26 February

    Limit the incoming email rate in Postfix

    Question: I have spammers sending multiple email messages to my mail server. How can can I limit the number of emails they can send in a given amount of time? Answer: This is a trick that many spammers and malicious hackers will use to flood your server with their nonsense. …

  • 4 February

    Monitoring your server from your iPhone

    Picture this. You’re on the go, traveling, working, going on a date, or even just taking a nap, and you suddenly start getting phone calls. Little do you know that those phone calls are from angry customers or your boss. The server went down two hours ago, but you had …

December, 2009

  • 3 December

    Where can I find a free SMTP server?

    An SMTP (Simple Mail Transfer Protocol) server is primarily used for sending email messages between servers. Most email systems use SMTP servers. But are there free servers for this task? Free SMTP Server is a Windows program that satisfies that need, and it is very easy to use. Furthermore, it …

Powered by Namesco
© Copyright InternetBlog.Org.Uk 2022, All Rights Reserved