bb-services: regexes in expect string?

I have this defined in bb-services:

[smtp-transaction]
        send "helo hobbit.domain.com\r\nmail from: <user-a3d973489fd1@xymon.invalid>\r\nrcpt to: <user-f1d73117a4d8@xymon.invalid>\r\nquit\r\n"
        expect "220-mx01.domain.com ESMTP\r\n220 ESMTP READY\r\n250 mx01.domain.com\r\n250 sender <user-a3d973489fd1@xymon.invalid> 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
XXX.XXX.XXXX