Is it okay to resend to hard bounced emails after X days. What is X?

Posted by V. Hsu on Server Fault See other posts from Server Fault or by V. Hsu
Published on 2010-03-12T16:35:51Z Indexed on 2010/03/12 16:38 UTC
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hard

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email-bounces

If I see an email returned due to a hard bounce, after how many days is it acceptable to resend to that email address. It is possible for emails to be reactivated or for temporary outages, so it doesn't make sense to keep an email in my hard bounce email list forever. I've already seen cases where I receive emails from addresses that were put in my hard bounce email list months ago.

Any recommendations? Are there specific recommendations from ISPs?

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