Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
AltaMail for iOS App Review
If you are not a fan of the built-in iOS Mail app then you could always go for the marginally better AltaMail, which has some handy little features included and is fairly easy to use. It is rather unexceptional overall but it has a lot going for it and it will get the job done. AltMail is available now from the App Store for $5.
The main draw of AltaMail is not that it is superior to iOS Mail, since many mail apps are, but the control it gives you, as well as its wireless capabilities, which include printing, inbox filtering and enhanced attachment options. However apart from this it is a rather basic package that may leave many customers wanting more. If you want a fancy email client packed with features, this is not it, but if you want a simple and effective one, you are in the right place. AltaMail does everything the built-in app can but with a few extra features thrown in, making it instantly preferable if you have $5 to spare. iPad and iPhone users may find it is exactly what they need, especially with the more extensive printing options it offers.
The best feature by far is the wireless printing and once you use it you will never go back and it is a very easy process. As long as a printer has wireless capabilities, you will have no trouble printing off emails from your iOS device so if this sounds like something you need then AltaMail is a great way to get it. As well as printing emails there is also an option to convert them to PDF format but the downside here is that it requires an additional in-app purchase for $2 to get this benefit.
Another handy feature is the custom push notifications from your email accounts, although this requires a bit more effort to set up properly and you won’t really be able to get the most out of it unless you download free companion app WeNotify and install it on your Mac. With WeNotify you can sync your accounts without having to leave login details on the server for extra data privacy.
Currently there is no support for Dropbox or iCloud but this should be arriving soon but AltaMail does provide local file sharing if you use a wireless network. Your device will receive a local IP address which allows you to load files directly into AltaMail for later use, although it will probably be much easier to just email yourself the file, especially since the official process requires WeNotify.
AltaMail may not be the most impressive app out there but as an email app it does its basic job very well while the wireless printing options are a very welcome bonus. Writing, editing, sending or reading emails is a simple process and it does not take long to figure out how to print an email. AltaMail is far from perfect but it is more than adequate and might offer all you need from a mail app, depending on your requirements.