Hi folks,

I'm using mysql local_recipient_maps for rejecting email for unknown local 
users.

Here are the changes in my main.cf

local_recipient_maps = proxy:unix:passwd.byname $alias_maps
virtual_alias_maps = mysql:/etc/postfix/mysql-relays.cf

Here is my mysql-relays.cf

hosts=16.123.123.123
user=root
password=*****
dbname=testDB
table=users
query = select emailaddress from users where emailaddress='%s'

I'm able to query successfully.

But I'm stuck as my requirement is to query database according to sender.
Let's say some user with emailaddress 'sen...@myhostname.com' is sending email 
to my postfix and I need to validate him.

query = select emailaddress from users where emailaddress='%s' && 
allowedusers='sen...@myhostname.com'

Can anybody suggest me how can I get the sender email address in 
mysql-relays.cf on runtime.

Thanks,
Sumit Arora

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