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Monthly Archives: June 2012

Report Spam button

Cloudmark has an interesting discussion about the Report Spam button and how it’s used.

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Working as intended

There’s a certain type of sender that thinks every ISP block or email delivered to the bulk folder is a false positive. They’re so sure that the filters aren’t actually supposed to catch their mail that they’ll spend any amount of money and do every possible thing to get their mail to the inbox. The […]

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Deliverability of Facebook.com email addresses

Christopher Penn at What Counts did some testing to see what delivery to Facebook.com addresses looks like. It looks pretty grim.  

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Address verification

In the comments on my Address Verification in Real Time Ken asks: are there any legal issues in doing a large number of bulk SMTP transactions where you would connect issue say 20 RCPT TO commands to verify the user then send a RSET and QUIT. Immediatley connect again and do another 20 RCPT TO’s […]

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Scam, Scam, Scam

One of the things that never ceases to amaze me about phishers is how incredibly creative they can be in writing text that encourages recipients to open their emails. There have been two separate incident recently that inspired me to talk about phishing. The first was watching viruses propagate through my local neighborhood mailing list. […]

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Engagement in email

From Tim Roe at eConsultancy.com: Is engagement email marketing finally here? Tim lays out a number of factors for why engagement is important in email marketing and how to use engagement to improve ROI.

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A quick comment on commenting

I don’t have a published comment policy. Most people around here are polite enough I don’t think one is needed. There are a couple things I feel I should say, though. First posts are always moderated. This is moderation by email address so if you post using multiple addresses then your post will go into […]

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Spamhaus changes

A number of ESPs are reporting an increase in SBL listings of big, well known brands. InterestingSBLs seems to confirm this. Just on the month of June I see tweets reporting SBL listings for: Disney (again, and again) AAA Michigan, NRCC, the Mitt Romney campaign, Macy’s (again) Facebook, Walmart Brazil, Safeway, Bacardi. What happened? I […]

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Dealing with complaints

There are a lot of people who abuse online services and use online services to abuse and harass other people. But handling complaints and handling the abuse are often afterthoughts for many new companies. They don’t think about how to accept and process complaints until they show up. Nor do they think about how bad […]

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Not just you

This morning (9 or 10 am Pacific) my various mailing lists were lighting up with questions about Yahoo delays. A lot of people reported they were seeing Yahoo respond “420 Resources Unavailable, try again later” on connect. What everyone wanted to know was is if other senders were seeing this. The answer was a resounding […]

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  • ReturnPath on DMARC+Yahoo

    Over at ReturnPath Christine has an excellent non-technical summary of the DMARC+Yahoo situation, along with some solid recommendations for what actions you might take to avoid the operational problems it can cause.No Comments


  • AOL problems

    Lots of people are reporting ongoing (RTR:GE) messages from AOL today.  This indicates the AOL mail servers are having problems and can't accept mail. This has nothing to do with spam, filtering or malicious email. This is simply their servers aren't functioning as well as they should be and so AOL can't accept all the mail thrown at them. These types of blocks resolve themselves. 1 Comment


  • Fixing discussion lists to work with new Yahoo policy

    Al has some really good advice on how to fix discussion lists to work with the new Yahoo policy. One thing I would add is the suggestion to actually check dmarc records before assuming policy. This will not only mean you're not having to rewrite things that don't need to be rewritten, but it will also mean you won't be caught flat footed if (when?) other free mail providers start publishing p=reject.No Comments


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