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Issue emailing .pdf and .docx attachments

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Issue emailing .pdf and .docx attachments

Why cannot I send a .pdf or a word doc file from my comcast email account, the .pdf shows up as a red box and the word doc a blue box but cannot be opened by recipient. I have to send these files from my gmail account which is getting very frustratingIss

Official Employee

Re: Issue emailing .pdf and .docx attachments

It sounds like you may be having issues with outbound spam filters. For assistance with this issue, please reach out to Customer Security Assurance.


The Customer Security Assurance organization has been established to ensure a safe and secure online experience for Comcast customers. This team is a dedicated group of security professionals who respond to issues pertaining to phishing, spam, infected computers (commonly referred to as bots), online fraud and other security issues.

  • Business Hours: 6:00am - 2:00am EST, 7 days a week
  • Contact: 1-888-565-4329