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Can someone help. Mail in from internet and local mail on network works fine but no external mail is able to send out. Error 554: Relay Access Denied.
I have tried investigating this but have not managed to find what the key entry is. (I am not reliant on external entity to relay mail out). I want to use the mail server to send directly onto internet.
May 1 09:33:58 master: process 19723 exited, status 0
May 1 09:33:59 imap: idle for too long, closing connection
May 1 09:34:03 imap: idle for too long, closing connection
May 1 09:34:08 imap: idle for too long, closing connection
May 1 09:34:12 imap: idle for too long, closing connection
May 1 09:34:37 postfix/smtpd: connect from hostXX-XX-XXX-XX.in-addr.bt.com[XX.XX.XX.XX]
May 1 09:34:37 postfix/smtpd: NOQUEUE: reject: RCPT from hostXX-XX-XX-XX.in-addr.bt.com[XX.XX.XX.XXX]: 554 <firstname.lastname@example.org>: Relay access denied; from=<AAA@XXX.com> to=<email@example.com> proto=ESMTP helo=<rl001>
May 1 09:34:38 master: process 20007 exited, status 0
May 1 09:34:38 master: process 19859 exited, status 0
May 1 09:34:38 master: process 20006 exited, status 0
May 1 09:34:38 master: process 19951 exited, status 0
May 1 09:34:38 master: process 20005 exited, status 0
May 1 09:34:40 postfix/smtpd: disconnect from hostXX.XX-XXX-XX.in-addr.bt.com[XX.XX.XX.XX]
I have a vpn session into the mailserver. The ipaddress of this server is within the range of mynetworks.
The "local" mail client on the machine I am using to establish the vpn is using outlook express that has the imap and smtp settings set for the domain. The address that is allocated to the "local" ethernet card is not defined within the my networks. I am presuming this is OK?? It would not make sense to me to define this client in the range in mynetworks..
That would make sense if you are confident that no one who shouldn't can connect from that address if it's private (for example, most firewalls block private ranges coming from public networks) or it's yours and yours alone if it's public
TLS encrypts traffic - can be the authentication process and/or sending/receiving messages.
Authentication means that when a user connects (say to smtp), a username/password is required, and this is authenticated with a user database of some sort (can use pam for example).
I don't quite get your IP comments. What is the IP of May 1 09:34:37 postfix/smtpd: connect from hostXX-XX-XXX-XX.in-addr.bt.com[XX.XX.XX.XX]? it shouldn't be the public IP of your server, but your explanation isn't all that clear.
So, if the IP is yours, you shoudl be able to add it to mynetworks.
I'd still investigate authentication, and since you are doing it obver the net, you may want to do it in conjunction with TLS. However, your VPN setup may take care of security concerns (you want to avoid plain text passwords being sent over the net)