virtual_alias_expansion_limit is not updating

[jamesarems]

Hi,

We need to change virtual_alias_expansion_limit 10000 value to 15000 and and we can able to change it using below command,

postconf -e virtual_alias_expansion_limit=15000

But after postfix reload or zmmtactl reload , value is resetting to 10000.

How can i solve this? Why its changing to default?

Our zimbra version is 8.5.1.GA.3056.UBUNTU14.64 UBUNTU14_64 FOSS edition.

Please help us.