If you intend to send one email to many email addresses you should consider some email etiquette before sending.

Many people have worked out that you can separate many email addresses with a ; (semi-colon) or use the To button to add lots of addresses in the To or Cc fields.

However if you think about it, any one of those recipients can click Reply to All and instantly send an email to a ready made mailing list.  The giving away of everyone’s email address to all and sundry could be considered as bad manners and if any one of those recipients was a little unscrupulous might even harvest those email addresses for other purposes such as SPAM.

It would only take one of the recipients to have a computer infected with Malware or a Trojan virus and hey presto all email addresses could be harvested for lots of annoying SPAM or online threats.

So how can I send one email to many people without giving away everyone’s email address?

The answer is to use the Bcc (Blind Carbon Copy) field.  Any address placed in this field will be hidden from view.  So if you put all your email addresses in the Bcc field no-one will see anyone’s email address and it will be marked To ‘Undisclosed Recipient’