To write an email to any email address or a contact:Click on the letter icon in the top right corner.Click on Compose.Enter an email address or search for a contact.Enter a Subject.Enter the content of the email.Attach one or more files (optional, up to 19 mb).Include an Internal note(optional)Add one or more tags (optional).Select a queue to place the conversation in, for instance in case the contact writes back(optional).Toggle on "offer in queue" in case you want the conversation to immediately open in the queue selected in step 9 after you click send.Click Send.Please note that you can also open compose new email window in the new tab for convenience (arrow on top right corner above the +Bcc option).Compose new email section can also save drafts either manually or automatically if you close section without sending it out.Compose new email section saves your "from" email selection first time you send out an email and thus will offer you that "from" address next time as a default one.Messages can't exceed 25MB in total size (including content and all attachments). Because attachments are Base64-encoded, this generally means that they will be 1/3 larger when sending than they are on disk due to the encoding.