Emacs can't send mail to office365 with "An unexpected TLS packet was received."

Emacs can't send mail to office365 with "An unexpected TLS packet was received."

[Huajian.Luo]

Hi there,
I'm now need use office365 for my working mail, I've set up the configure file as following, but when I sent mail it complains with this message.
I'm using OpenSuse with emacs version GNU Emacs 25.3.1 (x86_64-suse-linux-gnu) of 2018-10-16. and Gnus v5.13

(setq message-send-mail-function 'smtpmail-send-it
      send-mail-function 'smtpmail-send-it
      smtpmail-auth-credentials
      (expand-file-name "~/.authinfo")
      smtpmail-default-smtp-server "smtp.office365.com"
      smtpmail-smtp-server "smtp.office365.com"
      smtpmail-smtp-service 587
      smtpmail-stream-type  'ssl
      )

=======================================================================================================
gnutls.el: (err=[-15] An unexpected TLS packet was received.) boot: (:priority NORMAL :hostname smtp.office365.com :loglevel 0 :min-pri\
me-bits 256 :trustfiles (/etc/ssl/ca-bundle.pem) :crlfiles nil :keylist nil :verify-flags nil :verify-error nil :callbacks nil)
gnutls-negotiate: GnuTLS error: #<process smtpmail>, -15

---------------------------------trace SMTP----------------------------------------------------------------------------

G2PR0401CA0013.outlook.office365.com Microsoft ESMTP MAIL Service ready at Fri, 28 Jun 2019 02:46:44 +0000^M
451 4.7.0 Timeout waiting for client input [SG2PR0401CA0013.apcprd04.prod.outlook.com]^M

Process smtpmail connection broken by remote peer

Emacs can't send mail to office365 with "An unexpected TLS packet was received."

[huajian Luo]

Hi there,
I'm now need use office365 for my working mail, I've set up the configure
file as following, but when I sent mail it complains with this message.
I'm using OpenSuse with emacs version GNU Emacs 25.3.1
(x86_64-suse-linux-gnu) of 2018-10-16. and Gnus v5.13

(setq message-send-mail-function 'smtpmail-send-it
      send-mail-function 'smtpmail-send-it
      smtpmail-auth-credentials
      (expand-file-name "~/.authinfo")
      smtpmail-default-smtp-server "smtp.office365.com"
      smtpmail-smtp-server "smtp.office365.com"
      smtpmail-smtp-service 587
      smtpmail-stream-type  'ssl
      )

=======================================================================================================
gnutls.el: (err=[-15] An unexpected TLS packet was received.) boot:
(:priority NORMAL :hostname smtp.office365.com :loglevel 0 :min-pri\
me-bits 256 :trustfiles (/etc/ssl/ca-bundle.pem) :crlfiles nil :keylist nil
:verify-flags nil :verify-error nil :callbacks nil)
gnutls-negotiate: GnuTLS error: #<process smtpmail>, -15

---------------------------------trace
SMTP----------------------------------------------------------------------------

G2PR0401CA0013.outlook.office365.com Microsoft ESMTP MAIL Service ready at
Fri, 28 Jun 2019 02:46:44 +0000^M
451 4.7.0 Timeout waiting for client input [
SG2PR0401CA0013.apcprd04.prod.outlook.com]^M

Process smtpmail connection broken by remote peer
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Re: Emacs can't send mail to office365 with "An unexpected TLS packet was received."

[Herbert J. Skuhra]

On Fri, 28 Jun 2019 05:00:54 +0200, "Huajian.Luo" wrote:
> 
> Hi there,
> I'm now need use office365 for my working mail, I've set up the
> configure file as following, but when I sent mail it complains with
> this message.
> I'm using OpenSuse with emacs version GNU Emacs 25.3.1 (x86_64-suse-linux-gnu) of 2018-10-16. and Gnus v5.13
> 
> (setq message-send-mail-function 'smtpmail-send-it
>       send-mail-function 'smtpmail-send-it
>       smtpmail-auth-credentials
>       (expand-file-name "~/.authinfo")
>       smtpmail-default-smtp-server "smtp.office365.com"
>       smtpmail-smtp-server "smtp.office365.com"
>       smtpmail-smtp-service 587
>       smtpmail-stream-type  'ssl
>       )

Does it work if use (setq smtpmail-stream-type 'starttls)?

--
Herbert