I was a free subscriber to the postal service and I was unable to send an email to a group of customers consisting of 200 people or companies, after which I subscribed to the service of sending messages to a group of customers through the following service: https://www.zoho.com/campaigns/features.html

But until now, the transmission fails and tells me that he only sends 100 emails at a time, and also does not arrive. I tried to send 5 emails and the sending failed

my email : news@maydanalquds.com

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