Is it normal for emails to send in waves?

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I just sent out an internal email to over 3,000 employees.  When I look at the delivery times, it seems that the email was delivered in large waves, almost precisely in 30 minute increments. Is this how Emma typically delivers emails (in timed batches) or is it a possible email ingestion issue on our side?
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Posted 2 years ago

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Zach Sharpe, Employee

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Hey Todd,

Great question! We send all emails out at the same time when you send from Emma. 

Any contacts that end up 'soft bouncing' we will attempt three additional times which can cause a delay in seeing this in the inbox.

In this case if its almost all internal addresses, it may help to check out our whitelisting resource found here:

If you're curious about delivery as a whole we do have a best practices page found here:

I hope this helps point you in the right direction and please let me know if I can answer any questions here!