bb-services: regexes in expect string?

I have this defined in bb-services:

[smtp-transaction] send "helo hobbit.domain.com\r\nmail from: <test at domain.com>\r\nrcpt to: <test at anotherdomain.com>\r\nquit\r\n" expect "220-mx01.domain.com ESMTP\r\n220 ESMTP READY\r\n250 mx01.domain.com\r\n250 sender <test at domain.com> ok\r\n" port 25

and a host that uses it in bb-hosts. This works great, except that it's tied to the host mx01.domain.com in the expect string.

Is it possible to use regexes in the expect string, such as expect "220-mx0[0|1].domain.com"? So far my attempts have been unsuccessful and the man pages don't seem to indicate if this is possible.

Aaron Zink Manager, Corporate IT eHarmony.com 626.795.4814