sent emails boucing back - DMARC error

[Coxxy]

Hi

This is an email I got back in reply to a webmail email I sent.  This undeliverable email ended up in my spam folder too, so I wasn't aware of the non deliverly.

Seems to suggest that it's a talktalk problem. My internet provider is talktalk

Mark

=========================================== 

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its

recipients. This is a permanent error. The following address(es) failed:

  greenwoodsurfacing@icloud.com

    host mx01.mail.icloud.com [17.57.154.33]

    SMTP error from remote mail server after end of data:

    554 5.7.1 Your message was rejected due to talktalk.net's DMARC policy. See https://support.apple.com/en-us/HT204137 for info

[Gliwmaeden2]

@kanya-TT, the recipient is named in the post, I believe, in the "permanent error" message at the bottom. 

[kanya-TT]

Hey there, Coxxy. I want to know who did you intend to send this message to. 

Kanya