[Email File Format APIs for Swift Open Source Swift APIs for Email Files Read, Write & Extract Attachments from MSG files via Swift. Email File Format APIs for Swift Include SendGrid-Swift Free Swift easy-to-use email Swift library that allows developers to send emails via the SendGrid. It allows email tracking, add attachment, set up IP Pools, Scheduled Sends & so on. Swift-SMTP Open Source Swift Email library for Sending emails with local file, HTML & raw data attachments. Add custom headers, Cc/Bcc & send multiple emails via Swift API. Postal A useful free Swift Email library allows software developers to fetch, receive, track and manage emails from Gmail, Outlook, Yahoo, or custom SMTP servers. Hedwig Open source Swift library that enables software developers to generate and parse email messages inside their own apps.]