Issue eMail probem

[Dork]

Server operating system version

CentOS Linux 7.9.2009

Plesk version and microupdate number

18.0.55 Update #1

SASL LOGIN authentication failed: generic failure
So it is not possible to send ore receive eMails

 

[Peter Debik]

Could you please show the output of these two commands?
# grep 'smtp' /etc/postfix/master.cf
# grep 'submission' /etc/postfix/master.cf

 

[Dork]

/$ grep 'submission' /etc/postfix/master.cf
#submission inet n - n - - smtpd
# -o syslog_name=postfix/submission
submission inet n - n - - smtpd -o smtpd_enforce_tls=yes -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
/$ grep 'smtp' /etc/postfix/master.cf
#smtp inet n - n - 1 postscreen
#smtpd pass - - n - - smtpd
#submission inet n - n - - smtpd
# -o smtpd_tls_security_level=encrypt
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#smtps inet n - n - - smtpd
# -o syslog_name=postfix/smtps
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
smtp unix - - n - - smtp
relay unix - - n - - smtp
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
#bsmtp unix - n n - - pipe
# flags=Fq. user=bsmtp argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
smtp inet n - n - - smtpd
smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes
submission inet n - n - - smtpd -o smtpd_enforce_tls=yes -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
smtp-amavis unix - - - - 10 smtp
-o smtp_data_done_timeout=1200
-o smtp_send_xforward_command=yes
-o smtp_tls_security_level=none
127.0.0.1:10025 inet n - - - - smtpd
-o smtpd_restriction_classes=
-o smtpd_delay_reject=no
-o smtpd_client_restrictions=permit_mynetworks,reject
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_mynetworks,reject
-o smtpd_data_restrictions=reject_unauth_pipelining
-o smtpd_end_of_data_restrictions=
-o smtpd_error_sleep_time=0
-o smtpd_soft_error_limit=1001
-o smtpd_hard_error_limit=1000
-o smtpd_client_connection_count_limit=0
-o smtpd_client_connection_rate_limit=0
-o smtp_tls_security_level=none
plesk-[myDomain]-85.214.231.106- unix - - n - - smtp -o smtp_bind_address=85.214.231.106 -o smtp_bind_address6= -o smtp_address_preference=ipv4 -o inet_protocols=ipv4 -o smtp_helo_name=[myDomain]

grep 'submission' /etc/postfix/master.cf
#submission inet n - n - - smtpd
# -o syslog_name=postfix/submission
submission inet n - n - - smtpd -o smtpd_enforce_tls=yes -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination

 

[Peter Debik]

Thank you for the feedback. I think it is an issue with the Postfix configuration, but it is not the issue I had in mind and from the output I cannot derive a solution. This will need deeper investigation. Please open a ticket with Plesk support, https://support.plesk.com

If you bought your license from a reseller, please use the trial to get support from Plesk directly as described here:
https://support.plesk.com/hc/en-us/articles/12388090147095-How-to-get-support-directly-from-Plesk-