For the safety of your data, we have implemented an outgoing mail filter. This aids in early detection of compromised accounts and prevents such accounts from sending spam. In addition, outgoing mail is rate controlled at a maximum of 100 messages per 30 minutes per email address. If exceeded, messages will be queued for deferred delivery. If sending hundreds of messages in bulk is required, we recommend using a specialized service such as Mailchimp, Campaign Monitor, Constant Contact, or a mailing list service.
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