Horse Tools 1.3.39
- Horse Tools now checks whether your server's address has a name. Gmail and Yahoo both expect the address a message arrives from to resolve back to something, and Yahoo refuses outright when it does not — which from your side looks exactly like the message vanishing, because the refusal happens at the far end and the bounce goes somewhere you never read.
- A plain VPS often has no such name, because nobody set one and nothing else needs it. The site owner cannot see it, and has no way to connect "no reverse DNS" to "the customer says the order email never came".
- Only the unambiguous case is reported: no name at all. Whether an existing name is a good one has enough grey in it to produce false alarms, and this screen does not raise those.
- This is what was actually wrong on the two sites it was written for — and the release before this one guessed differently. Port 25 turned out to be open; the addresses simply had no names. The check added in 1.3.38 stays, because it is right about the case it describes, but it was not this case.
Install: download horse-tools-1.3.39.zip below, then Plugins → Add New → Upload Plugin.