Inbox Fringe

Full Version: What do you guys consider when crafting a subject line?
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
Trying to learn how to create eye catching subject lines that inbox. 
Any help would be appreciated.
I think to make sure I have the "Essential Elements" in mine.

Urgency - Communicate something that implies they need to read the email now.
Curiosity - Know your audience and try to peak their curiosity.
Personalization - Cater the subject line to what you know about the recipient.
Relevance - Subjects that are relevant to what the user signed up for.
How do you guys judge whether a subject line is good or not?
I go off open rates. Subject lines are gauges by open rates.
I second that. I judge by open rates. Click rates I use to judge the email body content.