I cannot receive or send mail from my comcast account

[ladymart2019]

my account is <Edited>

[ladymart2019]

Please contact me at <Edited>

I cannot receive or send emails from <Edited>

[swunderl]

I'm able to send and receive emails, but it seems as if many emails are not being received by others since Sunday, despite saying they are sending successfully. Emails I'm sending to multiple different domains are not being received. Some emails are being received. Is this a known issue that is being addressed?