I am not sure if I am allowed to ask the below question about a software which might be used for sending Spam.
I have a Holiday House in Turkey and although it is a fairly new venture it is going rather well. *** Link Removed ***
I am thinking of sending some personalised emails to my clients to thank them for their custom and also to inform them of special offers during the out of peak seasons.

Would you be able to recommend a Freeware software to be able to do this.