Mailgun v1.8.0 Release Notes

    • ⚡️ Updated to Guzzle5 (#79)
    • ⚡️ Updated default API version from v2 to v3 (#75)
    • 👉 Show response message on 400, 401 and 404. (#72)
    • 🔨 PHP DocBlocks, Constants Changes, and Minor Refactors (#66)
    • ➕ Added PHP 7.0 support for Travis-CI, removed PHP 5.3 support (#79)