Issue with SMTP

Hi,

I have an issue with sending mails. I noticed in March that wanderlust 
with  EMACS 25 did not work after upgrading to gnutls 3.6.6 (gentoo 
linux system, stable). I downgraded to gnutls 3.5.19 and was back in 
business.

This weekend I upgraded to Emacs 26 and gnutls 3.6.6 and the same error 
appeared. Here is the trace of the SMTP session:

220 SYAPR01CA0024.outlook.office365.com Microsoft ESMTP MAIL Service 
ready at Sat, 1 Jun 2019 10:20:59 +0000


Process SMTP killed
EHLO username.domain.vuw.ac.nz

250-SYAPR01CA0024.outlook.office365.com Hello [121.73.144.165]

250-SIZE 157286400

250-PIPELINING

250-DSN

250-ENHANCEDSTATUSCODES

250-STARTTLS

250-8BITMIME

250-BINARYMIME

250-CHUNKING

250 SMTPUTF8

STARTTLS

220 2.0.0 SMTP server ready

*** Starting TLS handshake
- Certificate type: X.509
- Got a certificate list of 2 certificates.
- Certificate[0] info:
  - subject `CN=outlook.com,O=Microsoft 
Corporation,L=Redmond,ST=Washington,C=US', issuer `CN=DigiCert Cloud 
Services CA-1,O=DigiCert Inc,C=US', serial 
0x072161dc5be0a481e1fb38373dbe9bca, RSA key 2048 bits, signed using 
RSA-SHA256, activated `2019-01-23 00:00:00 UTC', expires `2021-01-23 
12:00:00 UTC', pin-sha256="C0+Rfa5n99ld2zACaCZbLuah7iZuyn17uVN4/W8dOR4="
	Public Key ID:
		sha1:89a9de64107084cbb4d8ca72cef4e1f2fba8e962
		sha256:0b4f917dae67f7d95ddb300268265b2ee6a1ee266eca7d7bb95378fd6f1d391e
	Public Key PIN:
		pin-sha256:C0+Rfa5n99ld2zACaCZbLuah7iZuyn17uVN4/W8dOR4=

- Certificate[1] info:
  - subject `CN=DigiCert Cloud Services CA-1,O=DigiCert Inc,C=US', 
issuer `CN=DigiCert Global Root CA,OU=www.digicert.com,O=DigiCert 
Inc,C=US', serial 0x019ec1c6bd3f597bb20c3338e551d877, RSA key 2048 bits, 
signed using RSA-SHA256, activated `2015-08-04 12:00:00 UTC', expires 
`2030-08-04 12:00:00 UTC', 
pin-sha256="UgpUVparimk8QCjtWQaUQ7EGrtrykc/L8N66EhFY3VE="
- Status: The certificate is trusted.
- Successfully sent 0 certificate(s) to server.
- Description: (TLS1.2)-(ECDHE-SECP256R1)-(RSA-SHA256)-(AES-256-GCM)
- Session ID: 
6A:0B:00:00:0D:A7:D1:90:C5:83:46:25:F5:88:26:B2:E9:E5:3B:92:43:AA:65:49:4E:81:AC:B5:58:0F:08:82
- Options: extended master secret, safe renegotiation, OCSP status request,
QUIT

221 2.0.0 Service closing transmission channel

*** Fatal error: The TLS connection was non-properly terminated.
*** Server has terminated the connection abnormally.

The "QUIT" and the three lines which follow appear after I terminated 
with C-g. Before I do that it just hangs at the last output of "OCSP 
status request,"

Unfortunately I am not an expert in lisp or mail protocols, so I reached 
the end of the line after reinstalling wanderlust and starting with a 
fresh .emacs and .wl file.

Any help would be appreciated.

Petrik

P.S.: this e-mail is created with Thunderbird, not WL