InstAddr

This application allows you to have multiple email addresses for different purposes, without any of them expiring. This is perfect for situations where you don't want to receive spam or newsletters, or when someone you're not close to asks for your email address. You can also use it to create a dedicated contact email address for events or to keep in touch with people you're not very close to.

The app's features include the ability to create as many email addresses as you want, with the option to use your own characters or have the app generate short, memorable addresses. You can also send and receive messages from these addresses, with support for features like SPF, DKIM, and encrypted delivery.

The app also offers push notifications, so you can be notified of new messages even when the app is turned off. These notifications can also be sent to other devices. The email addresses you create are permanent, even if you change devices or delete the app. You can also sync your messages with other devices, without any complicated setup.

The app also supports HTML emails and attachments, and has its own mailer with features like inbox, sent box, filters, and mail blocking. It also has unique features not found in other mailer apps, such as the ability to share messages with friends as a website, assign email addresses to others, and create web forms. Many users use this app to create dedicated contact email addresses for campaigns and events, making it a great choice for those looking for original and SEO-oriented features.