Suspicious activity detected while sending email

The "suspicious activity detected" and "account temporarily blocked from sending messages" errors put a hold on your account, preventing you from sending email for a few hours. You'll have to wait for the hold to clear on its own. Avoid this error in the future by limiting these sending habits:

  Doesn't sound like your sending habits? Someone else may be sending email from your account. Find out how to secure a hacked account.

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