Blog

  • Why web hosts should filter outbound spam November 20th, 2014, by dliao

    Email is an essential service that most hosting customers expect to work 100% of the time. But how often is your mail traffic getting rejected due to IP blacklisting? How many hours are spent hunting down fraudulent accounts and getting your IP addresses off the blacklists? The largest webmail providers in the world – AOL […]

  • Update: How well do large senders do at delivering email? November 5th, 2014, by ksimpson

    Two weeks ago, we posted an article discussing how successfully the largest email senders are able to reach the inbox. We received some criticism about this post, because it made some providers look worse than they really ought to be based on their own inbox delivery performance metrics. To help shed some light on the […]

  • Outbound anti-spam: not your average spam filter October 24th, 2014, by dliao

    Spam is something most people think of as an inbox problem – one that requires filtering inbound email traffic. Outbound spam, however, is unwanted email sent to the Internet from an internal host or trusted user. It’s different from inbound spam in a few ways – most importantly, in how you control it. Outbound spam […]

  • How well do the biggest email senders do at reaching the inbox? October 16th, 2014, by ksimpson

    UPDATE (10/24): In our original post, we used the term “delivery rate” instead of the more commonly used term “message accepted rate”. The analysis below is accurate; however, we will follow up soon with a more comprehensive analysis that reveals the proportion of messages that are accepted/bounced after initial phases of rejection such as IP […]

  • Shellshock: What MailChannels customers need to know September 25th, 2014, by ksimpson

    Yesterday, security researchers disclosed a critical vulnerability in the “bash” program that ships with virtually every Unix and Linux system. This vulnerability enables – in some cases – remote execution of arbitrary programs via the command line, allowing an attacker to gain sensitive information such as password hashes from a target machine. MailChannels Software is […]

  • Using MailChannels SMTP Relay just got easier September 19th, 2014, by dliao

    You may have noticed the MailChannels SMTP Relay Console has received user interface (UI) improvements. Aside from a cleaner, more contemporary look and feel, we’ve also introduced more powerful search, a new reporting functionality and we redesigned the main navigation so it’s easier to access key information quickly.   Advanced Search Advanced Search can be […]

  • Web hosts explain the benefits of MailChannels September 5th, 2014, by dliao

    All web hosts have problems with spam. Which inevitably leads to problems with their servers being blacklisted. Which causes customer service chaos and damaged IP reputations. MailChannels helps web hosting companies isolate and remove spammers from their networks. We polled five of our customers on video about why they rely on MailChannels to throttle outbound […]

  • How to send bulk email June 5th, 2014, by ksimpson

    Our customers often want to know how they can deliver email to enterprise recipients reliably. Usually when this question is asked, the customer has experienced some level of rejection, and has grown frustrated and confused as to why their great email is not reaching the inbox of their clients. Here’s the thing: Delivering email that […]

  • Changes to Yahoo & AOL’s DMARC Policy May 22nd, 2014, by ksimpson

    Yahoo & AOL Mail recently updated their DMARC (Domain-based Message Authentication, Reporting and Conformance) policy to “reject”. The new policy means that messages from Yahoo! and AOL addresses will be rejected by email receivers unless they originate from a Yahoo! or AOL mail server. This change makes it impossible for spammers and fraudsters to impersonate […]

  • MailChannels SMTP Relay customers protected against ‘Heartbleed’ April 10th, 2014, by ksimpson

    MailChannels takes security very seriously. MailChannels cloud services never incorporated the vulnerable software and MailChannels SMTP Relay were not affected by the security flaw discovered earlier this week. Full technical announcement here.