Am 26.10.2017 um 12:20 schrieb David Zambonini:
There seems to be a bug with RFC822 processing in ltmp proxying that doesn't quote local parts that, for example, contain spaces.
Newer related RFCs are RFC 5321 and 5322. [ ... ]
MAIL FROM:<t...@testdomain.com>\r\n RCPT TO:<deemzed.uk+Junk E-mail>\r\n 501 5.5.4 Invalid.parameters\r\n
That recipient address is totally invalid. It is neither just a local part without a domain, nor a plussed address destination.
Check your setup with i.e. RCPT TO:<"Junk E-mail"@deemzed.uk> or RCPT TO:<"test+Junk E-mail"@deemzed.uk> Alexander
