Brad Knowles wrote:
If people are subscribing from their cell phones, then this meansthey have a way to read and write e-mail messages. That's all the capability you need, in order to have a confirmation work. They just respond to the confirmation request by e-mail, and you're done.
You'd think so, wouldn't you? I can have an email conversation all day long between my cell phone and my mail client, but try to subscribe a cell phone to a mailing list and it's a different story. The confirmation message is received, you reply to it from the phone, and off it goes into a black hole, the phone never actually subscribed. Eventually the list admin gets the failure report I pasted into the original message of this thread.
Some phones are able to subscribe to mailing lists, but most are not. I
really have no idea what mechanisms cause them to fail. This is not
specific to Mailman either - we had the same problem when we were
running on CommuniGate Pro. I suspect that the problem could be at the
service provider level. Most people get close to zero spam on our
phones, and I think it's because cell providers do some extremely
aggressive blocking. But once subscribed, the phones can receive these
daily haiku digests just fine (he currently has about 3000 cell
subscribers, but most of them had to be manually added or approved).
Scot