I’ve been trying to configure the Postfix mail program on my Raspberry Pi so that it will accept inbound emails on port 25 and send them on straight to smtp.aa.net.uk, which is AA’s inbound mail server. The reason is that I have several ancient devices that want to send alert or log emails to some address and do not support the modern authentication requirements of better secured inbound mailservers. Also I want to decouple those device from my email accounts with AA so that if do I have to have passwords involved, although I’m really really trying to avoid that at all, then I can use fixed single passwords just to get the devices access to the mail relay.
I’ve been trying to test thePostfix setup with a tool that I have for the purpose in a specialist iPad networking utilities app. I suppose I should also just telnet into the mail relay and give it a load of lines of text using copy-paste. It seems that it’s doing a starttls and that’s upsetting the tool that I used as I set the mail test app’s parameters to have ‘no encryption required’ and ‘plain’ for authentication although I’d rather as I said have no password challenge at all.
Could anyone who speaks Postfix tell me what I should be doing in the config file? I’ve gone through it fairly carefully, and I’ve set up the relay to AA, I hope. But at the moment I’m still not happy at the time of client connect into port 25.
