I went into Hotmail and found out that they block attachments with many suffixes.
I can email my son on Hotmail with a text email. However, if I include an attachment, the email is returned to me. I don't have that problem if I send myself an email with attachment to my hotmail address from my Road Runner address. I am not able to view his settings or options. Can anyone tell me what he needs to change in order to receive attachment?

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