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HELO / EHLO whitelisting with wildcard (smeserver-wbl)?

HELO / EHLO whitelisting with wildcard (smeserver-wbl)?
« on: February 16, 2012, 08:16:29 AM »
Hello,
is it possible to modify the whitelist-blacklist contrib to allow wildcard HELO/EHLO whitelisting, or some other way of doing it?
The domain I want to whitelist at HELO stage has several sending mailservers with different names, eg. mx1.domain.com, mx2.domain.com and I don't know all the names or IP-addresses. I guess I could find out those but I think wildcard EHLO could be more flexible?