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 Archive for the ‘Deliverability’ Category

Yahoo Email Delivery Delays

Thursday, February 21st, 2008

Some of our customers have noticed some delivery delays at Yahoo. We're looking into it, but it does seem like it's happening to everybody right now. Laura from Word to the Wise (aka the ISP Whisperer) has some explanation of the delays. Update: Yahoo! has posted an acknowledgment of the situation on ...

Spam Filter Checker Upgraded

Thursday, February 21st, 2008

We just added 3 new spam filters to our Inbox Inspector tool: Outlook 2007, Norton Internet Security 2008 and McAfee Security Center 2008. MailChimp's Inbox Inspector is an add-on that lets you check your email campaign's "score" with all the major spam filters. With one click, you can tell what the ...

How Fast Can Spammers Harvest Your Emails?

Monday, February 18th, 2008

Reading through the FTC Spam Summit Report (472k PDF), I came across an interesting study they did, buried way back in the Appendix. To determine how effective ISP spam filters are, they created 150 fresh new email addresses, and posted them at 50 locations around the Internet: "The 50 Internet locations included ...

Will Yahoo block messages that aren’t authenticated?

Tuesday, February 12th, 2008

Here's an interesting article about email authentication over at NetworkWorld: Will Yahoo block messages that aren't signed? For years, ISPs have been a little vague about how they're going to handle authentication. Will it be used to block email? Does every legit email marketer need to authenticate their messages? Do ESPs ...

Email Authentication by ISP

Thursday, February 7th, 2008

A few of our customers have been asking us about this bit of news from ReturnPath: AOL Changes Authentication and Whitelist Standards. According to George Bilbrey, AOL, Gmail, and Yahoo have implemented DKIM email authentication. For those of you who don't know, authentication is a way to prevent email forgeries, and it ...

Who’s Secretly Reading Your Emails?

Saturday, February 2nd, 2008

There are people out there who are secretly reading and judging your email marketing campaigns. If you don't take these people into consideration whenever you create your campaigns, you're placing your company's reputation at stake and you could get blacklisted. Who are these people, and what exactly are they looking ...

Email Authentication Hits Tipping Point

Thursday, January 31st, 2008

Got this message from the ESPC. "The adoption of e-mail and domain authentication has reached its tipping point, exceeding 50% in several key metrics, according to the Authentication and Online Trust Alliance. The report found that 51% of the Fortune 500's consumer-facing brands, 52% of the Fortune 500's consumer-facing financial ...

Charter accidently deletes 14,000 email accounts

Wednesday, January 30th, 2008

Charter accidentally deleted 14,000 of their customers' email addresses. The folks at DeliveryMonitor.com point out that you might have experienced more than the normal amount of bounces from Charter.com accounts. They also recommend that until Charter sorts things out, you may want to exclude Charter email addresses from your ...

Roadrunner Domains Bouncing

Thursday, January 17th, 2008

MailChimp customers: If you're seeing a large amount of weird bouncebacks from Roadrunner, it's because Comcast took over some of Roadrunner's email domains (click here if you're having issues with Comcast bounces). More details can be found at Word to the Wise (a great deliverability resource, btw) The bad Roadrunner email addresses ...

Comcast Feedback Loop Reports

Thursday, January 3rd, 2008

Just before the holidays, (sometime around December 17th-ish) Comcast changed their spam filtering process. The bad news is that some of you may have experienced a larger than normal hard bounce rate to your recipients who use Comcast, and as a result, saw a lot of your recipients unsubscribed from your ...

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