[exim] problem to concate variable with text

Hello, everybody!

Can anybody help me with this:

I have a piece of code:

warn       !senders     = :
           set acl_m55  = ${lookup mysql{MYSQL_TESTCLIENT_DOMAIN_AWL}{$value}{0}}

it gives me

>>> check set acl_m55 = ${lookup mysql{SELECT src_domain FROM EXIM.whitelist_domains WHERE src_domain='${lc:$sender_address_domain}'}{$value}{0}}
>>>                   = rt.ru

now I'd like to use it with regex to block some hosts
just like this:

exim -be '${if match{mailer.smart.ru}{\N\.rt.ru$\N}{1}}' #<-- yields nothing and this is what I want

but without using regex it yeilds 1:
exim -be '${if match{mailer.smart.ru}{rt.ru}{1}}'
1

Is it possible to achieve this kind of behavior with something like this (not working as I want - yields nothing):
warn       condition    = ${if match{$$sender_host_name}{\N\.$acl_m55$\N}{1}}

I have tried to google something like this but with no success






--
С уважением,
Костырев Александр
системный администратор