If you are experiencing problems sending email from an iOS device you may need to enable SMTP authentication to send emails securely from your iOS device.
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If you are experiencing problems sending email from an iOS device (iPhone, iPad, etc) with an error headed “Cannot Send Email” and error message of ” […] is not a valid email address and has been rejected by the server. The message has been placed in your Outbox.” then you may need to set up SMTP Authentication, to log into your email account before sending emails.
Please see our support article about sending emails.
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