492 postsPage 34 of 50
A go-to resource on best practices for email security, anti-spam trends, product updates and everything in between.
Industry
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
2 min read
The world’s largest spam sources revealed to be hosting companies
Read post: World’s largest spam sources are all hosting companies
Product
2 min read
MailChannels has released its version 2.5 email filtering platform. This blog post describes what’s new in 2.5.
Read post: Release 2.5 AnnouncementIndustry
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
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
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
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
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)
Industry
1 min read
In this post, we discuss what fakemx.net is, and why it’s generating temporary delivery failure notices in your mail server logs.
Read post: What is fakemx.net and why are they temp failing me?
Industry
2 min read
We explain why Yahoo! fails connections to its mail servers with error: 421 4.7.0 [TS01] Messages from 1.2.3.4 temporarily deferred due to user complaints.
Read post: Why Is Yahoo! Temp Failing My Mail?Subscribe to the MailChannels Blog to receive new blog posts in your inbox.