Tag Archives: email

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 …
• 1 April

  How do I enable SSL/TLS in Dovecot mail server?

  Dovecot is a popular POP3/IMAP server for Unix-like operating systems. It is available through most distributions, including RHEL, CentOS, and Fedora. To enable secure mail transactions, you will need to edit your /etc/dovecot.conf file as root. Uncomment the following lines: # Disable SSL/TLS support? ssl_disable = no # PEM encoded …

March, 2010

• 23 March

  4 Tools to monitor site uptime

  One of the most important things you can do for your website is to make sure you have some type of monitoring. The last thing you want is to get an email or call from an irate customer because your site is down. Here are four web-based monitoring tools that …
• 8 March

  Web host encourages clients to use Gmail

  You might think that as one of the largest web hosts in the United States, DreamHost would want its customers to use its own email service. You’d be wrong to think so, however. Since May 2008, the company has encouraged its users to switch to Gmail for their email needs. …

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. …
• 1 February

  How read Outlook mail via web

  Microsoft Outlook is a great desktop mail client for at home or in the office, but what if you are using a computer not configured for Outlook access and need to check your mail? When this happens, Outlook Web Access (OWA) is a good alternative. Originally called Exchange Web Connect …

December, 2009

• 21 December

  How to setup email forwarders in cPanel

  Question: How can I use cPanel to forward emails sent to addresses in my domain to another email address? Answer: The web-based control panel called cPanel makes it easy to create email forwarders. A forwarder allows you to setup any number of virtual email addresses within your domain and then …
• 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 …

November, 2009

• 27 November

  Tracking emails with Postfix

  Question: I am noticing some problems with my email server, Postfix. Is there a way to track emails? Answer: While you should definitely not use this for purpose of spying, it is sometimes necessary to track all emails on a server, even if you have multiple users on it. Sometimes …
• 25 November

  Getting rid of crontab emails

  Question: How do I stop crontab from sending me emails after a cron job finishes? Answer: In Linux the default setting for crontab is to send an email to the owner after a cron job finishes. An easy way to change this is to reroute those emails into nothingness, which …