Think “Sincerely,” “Best,” “Thanks,” or something like “Have a great weekend!” Unless you're more than a few emails into an email thread (especially over a short period of time) or you're very close with the recipient, you need a professional closing for your email. See below for a list of options.
What can I say instead of thank you at the end of an email?
"Thanks" is typically best if you're asking for something, versus "regards," which is better to close an informational note. Other professional letter closings include “sincerely,” “best” and “best regards,” while other casual letter closings include “take care,” “cheers” and “talk soon.”
Warm Regards is a relatively rare and unusual phrase that is often used for close friends and relatives. It thus is commonly used casually or informally. It is therefore considered slightly odd to end business letters with “Warm regards” unless the people involved are social acquaintances as well.
The most frequently used friendly letter closings are “Cordially,” “Affectionately,” “Fondly,” and “Love.” “Gratefully” is used only when a benefit has been received, as when a friend has done you a favor.
Some good options are “Best regards,” “Sincerely,” “Thank you,” and “Warmly.” You'll want to avoid anything too casual like “Cheers,” “Xoxo,” or “Later!” We listed lots to choose from below.
This phrase is a more personal form of "best regards." It expresses appreciation to the recipient and is most appropriate when you're communicating with people who you know well, such as friends or family members.
"Much appreciated" is a friendly way to offer thanks. This can be a suitable sign-off for an email confirming details, delegating a task or approving an assignment.
WordFinder also identified some of the least passive-aggressive work phrases, including “Sorry to bother you again,” “Any update on this” and “I'll take care of it.” According to Mercurio, the difference in the delivery of these phrases have to do with timing and attitude.