How to Delay Email Validation in Clay to Avoid Greylisting Issues

Hello. Is there a way to delay a column running in Clay? Ideally I'd like to do this within Clay without the need for webhooks and extracting data externally and pushing it back etc in order to create a 'fake' delay. In this use case I am running email validation. On "grey listed" emails it is usually advisable to re-run validation. If an email is greylisted, it is only subject to a temporary block. A legitimate email will be resent by the remote server, causing it to be moved from the greylist to the allowlist and delivered to the intended recipient on the second try. However on testing I'm seeing that if you run the second attempt immediately it will usually return a greylisted result again. There should be a slight delay. My table is working perfectly but unless I get a slight delay on the second attempt I'm getting grey listed for the majority instead of the correct result. TIA