Virgin Media said "no further emails are able to be sent in this manner" after some of its customers complained they were being spammed following a group email.
A Virgin Media spokesperson said:
A small proportion of our customers have received an email from one of our suppliers which, if they reply-all, it is sent to a wider group.
We’re investigating exactly what has happened ... We apologise for the inconvenience caused.
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A woman hit by police gunfire during a counter-terrorism operation has been arrested after being released from hospital.
Police have been granted extra time to question a man who is being held on suspicion of planning a terror attack.
The man opened fire at the house, shattering the front door and window.