[CentOS] 请教 vps 内外网卡均显示内网 ip 地址问题, 如何修改

购买的 vps ,因为要配置 PMTA5 stmp 服务,因为网卡导致只能配置 10.0.38.2 这个局域网 ip ,看发送日志超时
10.0.9.2 >>> 94.23.206.89 肯定是不行的,求解答,琢磨了两天
2022-07-0913:28:48 Timed out,status ETIMEDOUT while connecting from mydomain (10.0.9.2)to reception.mail-tester.com
(94.23.206.89)(5x)

查看网卡配置如下:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.38.2 netmask 255.255.255.0 broadcast 10.0.38.255
inet6 fe80::76b5:36ff:fe00:5a prefixlen 64 scopeid 0x20<link>
ether 74:b5:36:00:00:5a txqueuelen 1000 (Ethernet)
RX packets 8439 bytes 825619 (806.2 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8406 bytes 1215975 (1.1 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0