I'm trying to setup email notifications for my TeamCity 8.1.5 instance via postfix on localhost (a Linux machine).
I'm able to send emails via postfix using `sendmail <TO>` on the commandline. Postfix is configured to use a mailrelay in the local network.
I'll not be able to connect to SMTP port 25 from outsite the machine due to firewall restrictions in the machine's network, thus every network communication must be kept locally.
Is there a way to send the email notficiations directly via sendmail?