Postfix Will Receive but NOT Send Mail
I'm having problems with my Postfix setup - it will currently only send and receive through SquirrelMail but will only receive and NOT send via Outlook or other mail clients.
Every time I try to send I receive the following message:
Sending failed; Reason:554 5.7.1 : Relay access denied
My config is set up as follows:
myhostname = mail.mydomainxxx.com
mynetworks_style = subnet
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = mydomainxxx.com, $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = mydomainxxx.com
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks reject_unauth_destination permit permit_inet_interfaces
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
virtual_alias_maps = hash:/etc/postfix/virtual
message_size_limit = 20480000
inet_interfaces = all
inet_protocols = all
smtpd_sasl_auth_enable = yes
And my log records the following:
May 27 12:06:05 mydomainxxx postfix/smtpd: connect from sender1.othermail.com[188.8.131.52]
May 27 12:06:05 mydomainxxx postfix/smtpd: NOQUEUE: reject: RCPT from sender1.othermail.com[184.108.40.206]: 554 5.7.1 <email@example.com>: Relay access denied; from=<firstname.lastname@example.org> to=<email@example.com> proto=ESMTP helo=<172.31.252.89>
May 27 12:06:06 mydomainxxx postfix/smtpd: disconnect from sender1.othermail.com[220.127.116.11]
Any help would be greatly appreciated,
You must enable "Server requires authentication" in your email client.
I've tried that but without success.
Out of interest do I need a TLS certificate installed for SMTP relay?
No, that's not necessary.
Try assigning your ISP's SMTP server in your postifix config
relayhost = smtp.domain.com
comment your relayhost if you don't use it
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