Fixes #503 [Bug] Email address validator doesn't comply with new TLD

[datdamnzotz]

Add length to 64 for suffix. Fixes #504

Checklist:

• [x] The code change is tested and works locally.
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation if necessary
• [x] There is no commented out code in this PR.
• [x] My changes generate no new warnings (check the console)

[datdamnzotz]

Fixes #503