About MailRadar

As a Linux oriented community for sysadmins, MailRadar.com aims to provide unique information and surveys about email messaging and email servers, as well as a range of free tools to help you determine the status of an IP or domain, or the security level of your mail server.
Mail servers facts & figures

Open source vs. commercial mail servers - global distribution

Out of the total number of email servers identified, 71.06% were found to be open source, while the rest of 28.94% are commercial servers. Open source vs. commercial mail servers
Open source mail servers
Commercial mail servers

Open relay vs. secured mail servers - global distribution

Open relay vs. secured mail servers The open relay percentage is 6.65%. A high number of open relays would increase the overall amount of spam received world-wide. 93.35% of the inspected servers are safe from spammer exploitation.
Closed relay mail servers
Open relay mail servers

Blacklisted vs. reliable mail servers - global distribution

The servers are listed in at least one blacklist database have a 49.27% percentage out of the total number of servers scanned. These servers are banned and cannot transmit emails to other servers that rely on blacklists to block spammers. The number of servers not included in any of the blacklist databases is 50.73%. Blacklisted vs. reliable mail servers
Reliable mail servers
Blacklisted mail servers
Latest email related articles

Spam plague in February and more to come

(Mis Asia Writer, Network World) Global spam volume grows by 25 per cent. A new research revealed a surge in spam levels in February 2010 to make up 89.4% of all e-mails.

Spam levels in Hong Kong reached 90.6% and virus activity in China was the highest in the world in February, according to Symantec's latest MessageLabs Intelligence Report. In Singapore, one out of every 319.2 e-mails contained a virus in a period when the total spam volume globally increased by about 25%.

In February, the most spammed industry, with a spam rate of 93.1%, was the engineering sector. Spam levels for the education sector were 90.8%, 89.3% for the chemical and pharmaceutical sector, 89.8% for IT services, 91.1% for retail, 87.6% for the public sector and 88.4% for finance.[...]
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Rating: 12345

Top 10 tech skills for 2010

(Jody Gilbert, TechRepublic) What areas should you focus on over the next year? This survey-based list highlights the 10 most sought-after IT skills.

At the end of last year, the Global Knowledge/TechRepublic 2010 Salary Survey asked, “What skill set will your company be looking to add in 2010?”. The skills listed by respondents include a mix of perennial favorites and cutting edge technologies. Here’s the complete list:
  1. Project management
  2. Security - It’s a never-ending game of cat and mouse for security professionals, and 2009 proved to be another fun-filled year. According to Symantec’s Security and Storage Trends to Watch report, the number of spam messages containing malware increased ninefold, to represent more than 2% of emails.
  3. Network administration - Networking administration skills never lose their luster.
  4. Virtualization — Cloud - With the cloud computing space now taking shape, it’s difficult for enterprises to find pros with substantial relevant experience.[...]
Read more by following the "full article" link.
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Rating: 12345

Email Use Is Increasing

(Morgan Stewart,emailInsider) The Wall Street Journal is the latest to jump on the "email is dead" bandwagon. The article, "Why Email No Longer Rules... and what that means for the way we communicate," opens with the proclamation, "Email has had a good run as king of communications. But its reign is over." But they couldn't be more wrong. Email's future is looking even brighter today than it was just three years ago. Here's why:

Increased use of social media drives increased use of email
Among those using social media more over the past six months, 44% also report using email more, compared to only 4% using email less.[...]

Smartphones are driving more email use
43% of Blackberry users and 42% of iPhone users report using email more often over the past six months, compared to fewer than 3% who are using email less often. Monday, a press release from the Radicati Group estimated 139 million mobile email users. They also said, "Over the next four years, we expect this figure to increase at an average annual rate of 68%, totaling over 1 billion mailboxes by year-end 2013." Smartphones are also changing how email is used among college students.[...]

Read more by following the "full article" link.
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Rating: 12345
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DNS Tools
Get IP status, owner and location, obtain its corresponding hostname or check specific ports.
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Whois Info (IP owner)
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Open Relay Test
Test if your mail server is an open relay for spammers.
Blacklist Checker
Check if your IP is listed in DNS based email blacklists (DNSBL)