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The Worst Hosting Networks (for Spam)

Find out which hosting networks are the worst for spam

Amazon Web Services reveals i2 instance pricing - inadvertently?

Amazon Web Services (AWS) inadvertently (?) revealed the pricing of their forthcoming i2 instance type in a Slideshare presentation.

Why we should all be thankful for Nelson Mandela

Why we should all be thankful for Nelson Mandela

Why do I have to set up SPF in order to use MailChannels Cloud?

Why do I have to set up SPF in order to use MailChannels Cloud?

Amazon Web Services Puts Cap On Spot Instance Pricing

In an effort to reduct the likelihood of customers being "overcharged", Amazon Web Services (AWS) is capping the price of Spot instances to 4x the minimum.

MX Logic Blocking My Mails With "554 Denied CS [*.mxlogic.net]"?

Why is mxlogic blocking my mails with "554 Denied CS mxlogic.net (Mode: normal) "?

Fifty questions for Spamhaus, with our answers

Ken Magill, who writes a weekly marketing blog called "The Magill Report", recently solicited his readers to submit questions for Steve Linford...

World's largest spam sources are all hosting companies

The world's largest spam sources revealed to be hosting companies

Release 2.5 Announcement

MailChannels has released its version 2.5 email filtering platform. This blog post describes what's new in 2.5.

AOL Accidentally Rejects Millions Of Messages

AOL began rejecting connections instead of temp-failing them under certain conditions. This resulted in a major increase in non-delivery receipts worldwide.

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