More than one wildcard in IP address for SMPT deny

Can I do this in the inbound SMTP deny section to deny a larger range? I’m trying to avoid puting in several entries from the same domain.

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Subject: More than one wildcard in IP address for SMPT deny

Reposting this question in case someone can help me with it.

Thanks.

Subject: More than one wildcard in IP address for SMPT deny

Reposting this question in case someone can help me with it.

Thanks.