Email security
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How clean up your email and reduce spam
A crowded inbox is frustrating, but clicking every “unsubscribe” link in the spam folder is not a safe cleanup method. Separate unwanted legitimate subscriptions from messages you do not trust. Start with the messages you recognise Use the unsubscribe process for a legitimate newsletter you knowingly subscribed to. If you are unsure whether a message…
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Microsoft Exchange – how to update your SPF, DKIM and DMARC records
Microsoft 365 email authentication needs to match your actual domain and sending services. A copied example can be wrong even when it looks similar to your tenant’s records. Map who sends mail List Microsoft 365, website forms, marketing platforms and any other legitimate senders. Check the current DNS and ownership of the change. Do not…
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Microsoft Exchange hacked? What now?
If someone may have accessed your business email, treat it as an incident rather than just an annoying password problem. Contact your organisation’s administrator through a trusted route and record what you have noticed. Contain the access An authorised administrator should follow Microsoft’s compromised-account process, which includes securing the account and reviewing active access. A…
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The ‘Undeliverable Email’ Notifications Problem
A sudden run of “message undeliverable” emails can be confusing, especially when you did not send the messages. One possible cause is sender-address spoofing, but it is worth checking rather than assuming there is nothing you can do. How spoofed bounces happen Imagine a spammer uses someone else’s address on outgoing messages. Some receiving systems…
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Updating your password in Outlook 2010 tutorial
It is very simple to update your email collection (POP3) password in Outlook 2010 by following the steps below: Open Outlook Click on the ‘File’ option at the top of the page you’ll now have an option for ‘account settings’ – click here click on the account you’d like to change then select ‘change’ from…
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Outlook – certificate security warning
If Outlook warns that a server certificate cannot be verified, do not solve the warning by turning encryption off or accepting an unknown certificate. The warning deserves investigation. Record the problem Note the exact message, the account affected and whether sending or receiving fails. Do not publish your login details. Check that you are on…
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Updating your email password and security settings on Outlook 2007
Here is a short tutorial on how to update your email password and change the connection to the SSL security type. Note: this tutorial relates to email collection (POP3 or IMAP) not email sending (SMTP) and email collection connection security only. Updating the email collection security type to SSL Step 1 – open Outlook and select…
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Phishing emails – tell-tale signs it’s not from who it says it’s from
I’ve just received quite an ingenious phishing email… well it’s slightly more intelligently conceived and implemented than the usual type Yesterday I made an order on Amazon and today I get an email, pertaining to be from Amazon, telling me that my order has been cancelled! Firstly, even though I’m sure that me receiving an…