When viewing your saved Quote details, at the bottom of the Quote select the View PDF button.
Once you have opened the PDF, then the option to Email the Quote will appear at the bottom of the page.
When the option to Email the PDF is selected, then a new window will open with the Client's email address pre-populated, along with the standard email content. You can modify the Quote email by going to the Settings Cog > Accounts > Quotes.
From this window, you can add a recipient, add any attachments such as a brochure or detailed terms and conditions, modify the email content and copy in your company email to receive a copy of the notification for reference.
You can also send or share Quotes straight from the Quotes list, go to Accounts > Quotes > select the Send / Share icon at the right end of the Quote line. This will bring out a drawer from the right side of the screen, where you can select the method of sending / sharing. Select Send and Email, and then edit and / or send the Quote.
In the App, you can email the Quote by going to Accounts > Quotes > select the specific Quote > scroll down to the Share button at the bottom of the page. There, you can select Email from one of the available options.
You can also email the Quote when in Accounts > Quotes, by swiping right on the quote in the list, and selecting Email.