Q: Is it possible to change 123456789@192.168.0.101 to 123456789@yourdomain.com?
Q: What to do if I receive the error "mxrelay postfix/smtp: xxxxx said: 454 4.7.1 : Relay access denied (in reply to RCPT TO command)"?
Here are the steps for settting-up your SMSEagle to accept FQDN addresses:
1. Configure domain yourdomain.com
on your DNS server to point to SMSEagle device (A, MX entries).
2. Login to your SMSEagle device with SSH
3. Edit file:
[for NXS or MHD device type:]
/etc/postfix/main.cf
[for NPE device type:]
/mnt/nand-user/postfix/etc/postfix/main.cf
a) find line: myhostname = localhost.localdomain
b) comment the line (add a # sign before it):
#myhostname = localhost.localdomain
c) add new line: myhostname = yourdomain.com
d) save file, exit from editor
4. Reload Postfix configuration with command
postfix reload