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1/4 You will be blocked by iCloud ( https://t.co/NsdufEdHe1,
https://t.co/PwEStxUXeu,
https://t.co/QY72L7tdSp) and other domains using email providers (anything besides Google and Microsoft). iCloud domains will return this bounce:Â [HM07] Message rejected due to local policy.
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2/4 The most common bounce messages you will see from business domains are: -An URL contained in this message is blacklisted by Spamhaus DBL -domain XXXXX is listed on the dbl at https://t.co/NNEA8F7zv4 -A website in your message was listed on a spam blacklist - Spamhaus DBL
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3/4 At GMass, we've identified over 45,000 such domains that use Spamhaus DBL to block messages based on content and the number grows by 1-2k every week.
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4/4 Regardless of whether you use my email platform or a competitor's, the solution is to set up your own custom tracking domain if you are using a shared tracking domain OR check every domain (especially link shorteners) in your content on https://t.co/32fVJ8ERKn before sending.
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