Mailman.VerifyRecipients — Caution.

Question: I started using MailMan.VerifyRecipients to periodically check bad email addresses and within one week of using the method the server was blacklisted. Is this something you have heard of? or just coincidence? Answer: I haven’t heard of this before — thanks for letting me know. I suspect the reason is that VerifyRecipients works by connecting to an SMTP server […]