To forward one or more emails exactly as they were sent, you can ‘forward as attachment’. Here are the methods to do this for various types of email software. This is particularly useful when forwarding email for technical reasons, for example any spam that has been received. Mac Mail (standard mail application included with OSX) Simply "right click" the message itself in the centre window listing your emails and select 'forward as attachment'. A new email window will open up where you can enter the destination address, an envelope icon will appear in the message area visualising the email attachment.
Outlook Express / Windows Mail
Right-click the message that you want to forward. In the context menu that appears, click ‘Forward as Attachment’ (this is also available from the ‘Message’ menu) at the top of the screen. Type the destination email address and press ‘send’.
If you want to send multiple messages, you can also drag and drop messages onto the message window. You can also select multiple messages by holding the ‘Shift’ or ‘Ctrl’ keys when clicking, and then right-click and ‘Forward as Attachment’ as above.
Right-click the message, select ‘More Actions’ and then click the ‘Forward as Attachment’ option.
In Outlook 2007, ‘Forward as Attachment’ is available from the ‘Actions’ menu when one or more emails are selected.
To forward multiple emails, select the messages (by holding the ‘Shift’ or ‘Ctrl’ keys when clicking). Then right-click and select ‘Forward items’. This automatically attaches the emails to a blank message – Outlook decides for itself whether to forward as an attachment depending on how many messages you are forwarding. Type the destination email address and press ‘send’. (You could also use this to send a single email, by selecting a message you don’t want to send, and then removing that attachment before sending.)
Alternatively, start a new email message. You can then either drag and drop one or more messages into the new message (if after selecting the message you can’t see the new message window any more, drag it instead to the taskbar button for the new message and the window you want should come to the foreground); or from the menu, click the ‘Insert’ menu and then choose ‘Item’. In the top half of the window that opens, select the folder that contains the email you want to send, usually Inbox. Then select the message you want to attach, and make sure that any ‘Insert As’ option is set to ‘Attachment’ before clicking ‘OK’. Type the destination email address and press ‘send’.
You can tell Outlook to always forward as attachment by going to ‘Tools’ > ‘Options’ > ‘Preferences’ > ‘E-mail Options’ > ‘When forwarding a message’, and selecting ‘Attach original message’ > ‘OK’.
The method described for Outlook 2003 does send a message as an attachment, but unfortunately it removes the headers required for us to check so is not helpful.
Thunderbird (including Netscape, SeaMonkey)
the message or messages you want to forward. (You can select multiple
messages by holding the ‘Shift’ or ‘Ctrl’ keys when clicking.) Then from
the menu bar at the top of the screen, choose ‘Message’ > ‘Forward
As…’ > ‘Attachment’. The message should appear in the attachment box
in a new message. Type the destination email address and press ‘send’. Webmail