scam emails update-
My Northern Powergrid email was genuine, so sorted that one by ringing them up, always wise to check out if an email is valid if in doubt.
ICONS IN EMAILS-
The use of icons in emails is unusual such as low priority, high priority, set colour etc. Just recently (2020/2021) I have notice these coloured icons in some emails from certain sources, especially in spam/scam emails, as most people do not use icons for general emails, although emoji are often used in the subject of marketing emails. They are probably there to attract attention to the email such as a red flag, exclamation mark etc and they can be done in some mail software such as outlook.
The use of icons in emails is rare but I am now watching for them, usually it is like a trademark for a particular sender to include an icon, I have some with blue dash which indicates low priority if I hover the curser over the icon (unknown dating emails)
Some gambling/betting emails have red flag and this is a set colour icon, reason unknown.
When composing a virgin email in the options, the email can be set as normal priority, low priority or high priority, I have never used this before but tested this out today (sending emails to myself) and this provides the red exclamation mark for high priority, and the blue dash for low priority as seen is some spam emails, so I assume this is a standard option across email services.
Spammers can algorithms to change the sender address each time to avoid spam filters, changing the sender name and also the domain.
Opening emails can be dangerous-see
Why just opening a spam email could open the door for fraudsters (lovemoney.com)
Images, links and attachments can lead to hacking/phishing.
alf28