Remove Bad Emails to Avoid Temporary Blocking

Sometimes good email marketers who practice regular email list hygiene are not able to deliver emails to a specific ISP because of a temporary email block at the ISP. In this situation the emails usually bounce with the “too many invalid email addresses” error.

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Sender Reputation: Easy to Ruin and Hard to Restore

Your sender reputation with ISPs is the key factor which determines what will happen to your email after you click “Send”. Your reputation is built on your email sending activity, and it’s much easier to spoil it rather than restore your good name.

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What to Ask in the Opt-in Form

As the purpose of the actual opt-in form is to obtain the minimum of information that you will need to segment and personalize your email list, two general rules work here:

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