As was repeatedly pointed out to you, 74 is not the same as 75.
On 2020-06-26 16:56, Greg Sims wrote:
ip addr
=====
3: ens4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state
UP group default qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
inet 108.xxx.xxx.45/29 brd 108.xxx.xxx.47 scope global
noprefixroute
ens4
valid_lft forever preferred_lft forever
inet 74.xxx.xxx.192/29 brd 74.xxx.xxx.199 scope global
noprefixroute
You have 74 (seventy *four*) here
[snip]
master.cf
=======
r192 unix - - n - - smtp
-o smtp_bind_address=75.xxx.xxx.192
You have 75 (seventy *five*) here.
Either use 74 everywhere, or use 75 everywhere.
