tino_aguirre
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best bulk email verifyer program or solution
I have a list of emails (100k) that I need to clean up, what is the best bulk email verifyer?
also, check your SPF rules for your mail server on your hosting DNS service, it can work to reduce spam somewhat.
Just to clear this up -- SPF records for your domain are not related to spam incoming to your domain. However, on that note, if you enable SPF verification (for other domains) on your incoming server, that will reduce spam. I also suggest verifying DKIM signatures.
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If you want to screen incoming mails from getting to your exchange inbox try xwall. it runs at port 25 receiving your incoming mail, checks the messages against several spam databases and redirects/discards spam based on your settings.
also, check your SPF rules for your mail server on your hosting DNS service, it can work to reduce spam somewhat.