[BETA 7342] SmarterMail doesn't announce AUTH PLAIN in SMTP capabilities
Problem reported by Sébastien Riccio - 2/9/2020 at 9:46 PM
EDIT: Okay I'm stupid, I was testing SMTP (submission), for IMAP it seems ok.
However it would be good to also have PLAIN auth for SMTP as it is available for other protocols (pop3/imap).


In build 7314 changelog there is this nice new addition:

ADDED: PLAIN SASL support in IMAP.  

However we're on build 7342 at the moment and SmarterMail doesn't announce this capability for IMAP:

Here is the test showing it:

$ swaks --to whatever@swisscenter.com --from "sriccio@whatever.com" --header "Subject: Test mail" --body "This is a test mail" --server smbeta.swisscenter.com --port 587 --timeout 40s --auth PLAIN --auth-user "sricciok@whatever.com" --auth-password <redacted> -tls     
=== Trying smbeta.swisscenter.com:587...
=== Connected to smbeta.swisscenter.com.
<-  220 smbeta.swisscenter.com SwissCenter Mail Server; Mon, 10 Feb 2020 05:34:34 +01:00; Your IP: w.x.y.z
 -> EHLO awesomecomputer
<-  250-smbeta.swisscenter.com Hello [w.x.y.z]
<-  250-SIZE 52428800
<-  250-STARTTLS
<-  250-8BITMIME
<-  250-DSN
<-  250 OK
<-  220 Start TLS negotiation
=== TLS started with cipher TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256
=== TLS no local certificate set
=== TLS peer DN="/OU=Domain Control Validated/OU=GoGetSSL Wildcard SSL/CN=*.swisscenter.com"
 ~> EHLO prism
<~  250-smbeta.swisscenter.com Hello [w.x.y.z]
<~  250-SIZE 52428800
<~  250-8BITMIME
<~  250-DSN
<~  250 OK
*** Auth not attempted, requested type not available
 ~> QUIT
<~  221 Service closing transmission channel
=== Connection closed with remote host.

It should announce "AUTH PLAIN LOGIN CRAM-MD5 NTLM"

Kind regards
Sébastien Riccio
System & Network Admin

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