allow relaying for an ip..

[timothyalangorman]

I want to allow relaying for a specific internal ip...
127.0.0.0/8 x.x.x.0/24 is my mta trusted network entry...

is the /24 for the ip range?
the ip I want to relay is x.x.x.125

how can I get this to go through?
thanks
timg

[mmorse]

Recommendation: Use slash /32 on the IP you wish to allow incoming submission/relaying from.
Command:

zmprov modifyServer server.domain.com zimbraMtaMyNetworks '127.0.0.0/8 x.x.x.0/24 x.x.x.125/32'
postfix reload

(Might check the attribute first for other current values so you don't accidentally remove them.)

Explanation: If that IP doesn't fall within your interfaces x.x.x.0/24 net, and it's one trusted, unchanging IP - then adding just x.x.x.125/32 to the list would be more appropriate than opening it up for 255 other machines as well. Even though their on your internal net, who knows if they could become compromised; if there's no reason for them to ever relay mail, no sense exposing yourself.

Guides:
ZimbraMtaMyNetworks - Zimbra :: Wiki
IPv4 subnetting reference - Wikipedia