$2.83 at the time of writing) per month – which is probably affordable for most people (and is the one we tested).
The entry-level subscription plan costs just €2.50 (approx. The only restriction to Contacts and Calendar usage for free is 1000 contacts or 1000 events. In addition, it restricts group collaboration features to just one group with two members. The free service heavily restricts the use of the calendar and contacts features, however, and does not permit any synchronization across devices. Mailfence is a secure email provider that has a free subscription plan where users get access to an account with 500Mb of storage. On the plus side, Mailfence does "maintain an up-to-date warrant canary and transparency report listing", which allows consumers to keep a watchful eye over whether the service has been compromised by the authorities. In addition, Belgium is part of the greater 14 Eyes surveillance agreement. However, Belgium’s insistence that blanket data retention is useful for investigative purposes (and may even be good for citizens’ human rights!) is probably enough to put some people off. Luckily, these directives are strict and only permit the authorities to gain access with a warrant under very specific circumstances. On the other hand, Belgium does enforce some mandatory data retention directives that seem to apply to email providers. Being based in Belgium, the service falls out of the scope of Five Eyes.