Incompatible or non friendly behavior of -srv and friends
williamdes opened this issue · comments
$ smtpdane -show-cert-info -srv -submissions wdes.fr
error resolving SRV "_-submissions._tcp.wdes.fr":
no results found
The generated record makes no sense, I was thinking that submissions and friends would be a sub category
But it turns out that I need to remove -srv to use -submissions or it will create a very wrong record.
I did end up into this because I first tried -srv and then realised it needed one more, so I just added -submissions and a 🐛 was born
Other than that, thank you so much for considering SRV !
The -srv option takes a string argument (see the -help output), so you told it that the service to use is "-submissions".
Now, you should be able to use -srv submissions and that should have worked well enough, and it doesn't, and that's a bug.
Ah, no, it's not: -submissions is a shortcut for -tls-on-connect -srv submissions and my quick testing didn't set -tls-on-connect. When I remember that, everything works.
There probably needs to be some better diagnostic handling for when the server speaks TLS-on-connect and we didn't expect it, instead of hanging.
Commit e554c4f will protect against this in the future. I don't currently plan to cut a new release any time soon, we'll see what else is found to be fixed before I do that. :)
Thank you!