Not all email clients allow you to create several email signatures. For instance, Gmail doesn't. Although it is a nice feature that could be available in all email clients, it is not a principal need. But for a person who uses emails as the main tool of communication with customers, an absence of this feature may become one of their pet peeves.
Furthermore, a classic email signature with a hint of color will represent a manager of the company much better than some boring plain text. But there are occasions where a representative of the company may need to switch from a corporate email signature to a casual signature, considering the recipient of the email.
Thankfully, owners of Apple and Android devices will not face such inconveniences with Spark. It is a nifty email client that was developed specifically for iPhones and Mac OS, and now it works on Android as well. The email client has a lot of handy features that you will like, and won't find anywhere but in Spark.
Spark was planned as an app for Mac in the first place. It has a simple and intuitive design on macOS, so it is really easy to install an email signature there.
In addition to macOS, you can use a synchronized account on your iPhone or iPad. Installing a signature there is just as simple.
Spark is one of the few apps that allow using email signatures in Android.
If you want to create a professional email signature for Spark email and just copy-paste it right into your account, use Newoldstamp. The email signature generator allows you to choose and edit an outstanding email signature for you and your team in minutes.