Industry
Why do I have to set up SPF in order to use MailChannels Cloud?
1 min read
Why do I have to set up SPF in order to use MailChannels Cloud?
Read post: Why do I have to set up SPF in order to use MailChannels Cloud?Posts
Industry
Amazon Web Services Puts Cap On Spot Instance Pricing
3 min read
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.
Read post: Amazon Web Services Puts Cap On Spot Instance Pricing
Industry
MX Logic Blocking My Mails With “554 Denied CS [*.mxlogic.net]”?
1 min read
Why is mxlogic blocking my mails with “554 Denied CS mxlogic.net (Mode: normal) “?
Read post: MX Logic Blocking My Mails With “554 Denied CS [*.mxlogic.net]”?Industry
Fifty questions for Spamhaus, with our answers
21 min read
Ken Magill, who writes a weekly marketing blog called “The Magill Report”, recently solicited his readers to submit questions for Steve Linford…
Read post: Fifty questions for Spamhaus, with our answersIndustry
World’s largest spam sources are all hosting companies
2 min read
The world’s largest spam sources revealed to be hosting companies
Read post: World’s largest spam sources are all hosting companiesIndustry
AOL Accidentally Rejects Millions Of Messages
1 min read
AOL began rejecting connections instead of temp-failing them under certain conditions. This resulted in a major increase in non-delivery receipts worldwide.
Read post: AOL Accidentally Rejects Millions Of Messages
Industry
Why Is Verizon Blocking Email With “571 Email from 1.2.3.4 is currently blocked by Verizon Online’s anti-spam system.”?
2 min read
We demystify the 571 error code sometimes returned by Verizon’s mail servers.
Read post: Why Is Verizon Blocking Email With “571 Email from 1.2.3.4 is currently blocked by Verizon Online’s anti-spam system.”?
Industry
How Web Hosting Providers Can Battle Fraudulent Sign-ups
2 min read
Fraudulent sign-ups are a major problem for web hosting providers – particularly for providers offering VPS’s and other flexible hosting options.
Read post: How Web Hosting Providers Can Battle Fraudulent Sign-ups
Industry
Why Did AOL Send Me “554 (RTR:BL) http://postmaster.info.aol.com/errors/554rtrbl.html”?
2 min read
We discuss why AOL’s mail servers sometimes respond with the error message “554 (RTR:BL)” and what you can do to get email flowing to AOL users.
Read post: Why Did AOL Send Me “554 (RTR:BL) http://postmaster.info.aol.com/errors/554rtrbl.html”?
Industry
How Botnets Send Spam (In Layman’s Terms)
3 min read
A guest blogger describes how and why spammers use bot nets to send spam.
Read post: How Botnets Send Spam (In Layman’s Terms)Stay updated with MailChannels
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