Al writes about a Yahoo delivery problem where they have identified a particular Yahoo MX that is falsely returning “mail blocked due to XBL.” The IPs in question are not on the XBL. Yahoo is aware of the issue and are working on a resolution. If you are seeing these bounces, Yahoo is aware of the issue. Exacttarget has worked around the issue by suspending deliveries to the affected MX.
Someone twittered me a question about Y! and their ARF reports. Apparently the ARF header is not including AM/PM which is causing problems for some people. Yahoo is aware of the issue and looking into it.
On a housekeeping note, sorry for the lack of postings this week. I’m still recoving from the trip and while I have a lot of things I want to talk about (including responding to the great comments on transactional email) I am swamped with catching up.
A number of people are reporting seeing a new bounce from Yahoo. “smtp;553 Mail from x.x.x.x not allowed – [10]”. My clients have been asking and other people have been asking about this. It seems that something is changing at Y! More information as I hear it.
Read MorePeople are reporting delivery delays into Yahoo over the last day or so. Yahoo is having some general connectivity problems and are working to correct the issue.
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