Have received this via stakeholder forum –
We are proposing to change the colour of our envelopes from brown to white, but please note the size and types (e.g. window) of envelopes will remain unchanged.
After having carried out research, there’s evidence to suggest annotating the front of envelopes with messaging has a positive impact and encourages people to open post rather than leave it on the side.
The most often used and successful message in encouraging customers to open correspondence is ‘Important information enclosed. Please read’.
If you have any views/thoughts about the suggested message above and/or if there is another/different message you feel may be more suitable, let me know by 25th February and I will feed back…