How to resign

Just what the doctor ordered - legal wrangling:

The municipal employers of nurses who are members of the Union of Health and Social Care Professionals (Tehy) say that they will not accept the lists of names offered by the union as official resignation documents, insisting instead on personal resignation.

[...]

Seppo Koskinen, Professor of Labour Law at the University of Lapland, agrees with the management view, that resignations must be individual.

"A list of names is not an authorisation. It is also such a significant legal action that I do not think that there is any reason to take the line that lists like these should be accepted", Koskinen says.

At least the Helsinki and Uusimaa Hospital District and the City of Helsinki say that they will recognise only personal notice from each individual nurse.

The law says:

A notice on termination of an employment contract shall be delivered to the employer or its representative, or to the employee, in person. If this is not possible, the notice may be delivered by letter or electronically. The notice is then deemed to have been received by the recipient at the latest on the seventh day after the notice was sent.

You be the judge.

It's difficult to come to any firm conclusion about the effects of one method of resignation versus the other. You might be tempted to make some deductions about the fact that the two sides are arguing over this in the first place, but I doubt that either side is inclined to make concessions even on unimportant details.