(feature new in 15.1)
To configure a PostgreSQL database, a configuration file named "pg_services.conf" has to be uploaded in Mail Processing > PostgreSQL Client > Upload Client Configuration.
The file can contain more than one database definition.
Example content for a single database:
[configdb]
host=10.0.2.10
port=5432
dbname=configdb
user=postgres
password=qweQWEqwe123123