STMP connection error with roundcube

recently I was trying to install roundcube on my server and everything works fine until smtp test. When I try to connect i always get this error: SMTP send: NOT OK(Connection failed: Failed to connect socket: fsockopen(): unable to connect to ssl://mx.mydomain.me:587 (Unknown error))

Syslog at time of connection:

Feb  1 11:14:35 mx postfix/smtpd[196497]: initializing the server-side TLS engine
Feb  1 11:14:35 mx postfix/smtpd[196497]: connect from Ubuntu-2004-focal-64-minimal-hwe[ip]
Feb  1 11:14:35 mx postfix/smtpd[196497]: lost connection after CONNECT from Ubuntu-2004-focal-64-minimal-hwe[ip]
Feb  1 11:14:35 mx postfix/smtpd[196497]: disconnect from Ubuntu-2004-focal-64-minimal-hwe[ip] commands=0/0

My postfix config:

# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
# fresh installs.
compatibility_level = 2



# TLS parameters
smtpd_tls_cert_file = /etc/letsencrypt/live/mx.mydomain.me/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/mx.mydomain.me/privkey.pem
smtpd_tls_security_level = may

smtp_tls_CApath=/etc/ssl/certs
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_tls_note_starttls_offer = yes

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = mx.raveoultion.me
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, mydomain.me, mx.mydomain.me, localhost.mydomain.me, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = ipv4
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 4
smtpd_sasl_path = private/auth
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtpd_tls_received_header = yes

Also, I have ufw rule for my port.

After some testing, now i also get this error:

 mx postfix/smtpd[208262]: warning: SASL: Connect to private/auth failed: No such file or directory
 mx postfix/smtpd[208262]: fatal: no SASL authentication mechanisms

I have libsas12 installed