On 28 Apr 2021, at 10:28, Asai <a...@globalchangemusic.org> wrote: > We are getting reports, more and more, of email clients (Type App, Mac Mail, > iOS Mail) that seem to send email, and show that the email has been sent on > the client, but the mail server has no record of email ever reaching the SMTP > service, nor does it even seem that the client is connecting to the server.
First guess is they are sending through a different server. Mac/iOS are pretty good about trying over servers if one fails. > Can someone advise as to what area of debugging we can turn on? There's a lot > of info in debugging, and we can't turn it all on at once, so we could use > some specifics. If you do not see them connecting to you, no amount of logging or debugging will change that. -- Mos Eisley spaceport. You will never find a more wretched hive of scum and villainy. We must be cautious.