On Mon, Apr 25, 2022 at 10:16:09AM +0900, 황병희 wrote: > Haines Brown <hai...@histomat.net> writes: > > > (... thanks ...) > > 521 5.5.1 Protocol error (154.24 ms) > > Unverified address > > > > I reconfigured exim4 and it has no problem. > > > > Or you try with sSMTP, very easy! > > Sincerely, Linux fan Byung-Hee
Thanks for the suggestion, but I have same problem with ssmtp as I do with swaks: what does "test-server.example.net" refer to? Sorry for my ignorance.