dovecot Digest, Vol 210, Issue 27

[Adi Pircalabu]

On 14-10-2020 14:54, webadmin at exalt.com.au wrote:
> I am investigating whether dovecot(https://github.com/dovecot/core/) 
> handles
> case insensitive Message-ID headers as per RFC.

Again, Dovecot has nothing to do with this in the context. Fix your SMTP 
client and the problem will go away.

And you seem to have more than one issue to deal with, your email has 
failed the SPF check at my end and went straight into Junk because my 
server has received it from 103.27.34.234, which isn't listed in the TXT 
record for exalt.com.au:

---CUT HERE---
Authentication-Results: mx1.quick.net.au; spf=softfail (mailfrom) 
smtp.mailfrom=exalt.com.au (client-ip=103.27.34.234; 
helo=se6.syd.hostingplatform.net.au; 
envelope-from=webadmin at exalt.com.au; receiver=<UNKNOWN>)
Received: from se6.syd.hostingplatform.net.au 
(se6.syd.hostingplatform.net.au [103.27.34.234])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
---CUT HERE---

dig exalt.com.au txt +short
"v=spf1 ip4:103.27.34.46 +a +mx +ip4:43.241.54.89 ~all"
"MS=ms59508959"

Cheers,

-- 
Adi Pircalabu