Postfix SMTP relay server

main.cf

inet_protocols = ipv4
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options =
smtp_tls_security_level = may	 	 
header_size_limit = 409600
smtp_sender_dependent_authentication = yes
smtp_use_tls = yes
smtp_always_send_ehlo = yes
smtp_sasl_security_options = 
smtp_sasl_tls_security_options =
smtp_generic_maps = hash:/etc/postfix/generic
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
myhostname = smtprelay.josecapurro.com.py
sender_canonical_maps = hash:/etc/postfix/sender_canonical
transport_maps = hash:/etc/postfix/transport_map
smtpd_relay_restrictions = permit_mynetworks,reject
smtpd_recipient_restrictions = permit_mynetworks,reject
mynetworks = 0.0.0.0/0
message_size_limit = 102400000

generic

@localdomain smtprelay@josecapurro.com.py

sender_canonical

@localdomain.josecapurro.com.py @josecapurro.com.py

transport_map

josecapurro.com.py smtp:[josecapurro-com-py.mail.example.com]