Hello,

Tried to configure stunnel linked to pdm (solidworks)

When I try I have an error :  Service [ssmtp] started

2024.07.30 15:01:27 LOG7[1]: Setting local socket options (FD=1184)

2024.07.30 15:01:27 LOG7[1]: Option TCP_NODELAY set on local socket

2024.07.30 15:01:27 LOG5[1]: Service [ssmtp] accepted connection from 127.0.0.1:60652

2024.07.30 15:01:27 LOG6[1]: Peer certificate not required

2024.07.30 15:01:27 LOG7[1]: TLS state (accept): before SSL initialization

2024.07.30 15:01:37 LOG7[1]: TLS alert (write): fatal: record overflow

2024.07.30 15:01:37 LOG3[1]: error queue: ssl/record/rec_layer_s3.c:645: error:0A000139:SSL routines::record layer failure

2024.07.30 15:01:37 LOG3[1]: SSL_accept: ssl/record/methods/tls_common.c:654: error:0A0000C6:SSL routines::packet length too long

2024.07.30 15:01:37 LOG5[1]: Connection reset/closed: 0 byte(s) sent to TLS, 0 byte(s) sent to socket

2024.07.30 15:01:37 LOG7[1]: Local descriptor (FD=1184) closed

2024.07.30 15:01:37 LOG7[1]: Service [ssmtp] finished (0 left)

My config :

; Configuration de Stunnel

; Niveau de journalisation

debug = 7

output = stunnel.log

; Service SMTP sécurisé

[ssmtp]

accept = 127.0.0.1:25

connect = 127.0.0.1:587

cert = C:\Program Files (x86)\stunnel\config\stunnel.pem

key = C:\Program Files (x86)\stunnel\config\stunnel.pem

; Protocoles et suites de chiffrement

sslVersion = all

ciphers = ALL:!aNULL:!MD5

renegotiation = no

options = NO_SSLv2

TIMEOUTclose = 0

Can you help me please