| Problems sending email to Yahoo? |
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2006-10-28 In an effort to reduce SPAM from reaching their mail servers, Yahoo! Mail has implemented greylisting. What this means is that any emails you send to a Yahoo! email account will be temporarily rejected but they expect the sending SMTP server to retry again in a few minutes. SPAM senders normally use bogus or incorrectly set SMTP servers which fail to retry to send when the emails they are sending are rejected. This, then, would result in that SPAM mail from ever reaching Yahoo!'s servers. Normal SMTP servers retry sending emails within a few minutes or sometimes in a couple of hours. Legitimate emails are then guaranteed to reach the Yahoo! email recipient. Inconvenient? Yes. Effective? For now. Eventually, Spammers would use properly configured SMTP servers and greylisting would then fail. |
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