Germany, Switzerland, Austria, etc. have protection against dismissal.

- Germany: 1 month in first 2 years, 2 months for years 5 to 8, ..., 7 months from year 20 on.

- Switzerland: 1 month first year, 2 months for years 2 - 9, 3 months from year 10.

And (at least in Switzerland) a dismissal notice is void if you're on vacation and were not able to receive the registered letter.