S/MIME on-premise
€5 a month
Up to 250 participants · multiple devices
Checked 30 Sep 2026
Plans and prices
KeyTalk CKMS pricing
S/MIME hosted SaaS
€6.50 a month
Up to 250 participants
Checked 30 Sep 2026
CKMS 10,000–24,999 seats
Not listed
10,000–24,999 licences
Checked 15 Oct 2026
CKMS 1,000–2,499 seats
Not listed
1,000–2,499 licences
Checked 15 Oct 2026
CKMS 25,000–49,999 seats
Not listed
25,000–49,999 licences
Checked 15 Oct 2026
CKMS 2,500–9,999 seats
Not listed
2,500–9,999 licences
Checked 15 Oct 2026
CKMS 0–49 seats
Not listed
0–49 licences · base plus seat licences
Checked 15 Oct 2026
CKMS 50,000–74,999 seats
Not listed
50,000–74,999 licences
Checked 15 Oct 2026
CKMS 50–249 seats
Not listed
50–249 licences
Checked 15 Oct 2026
CKMS 75,000–99,999 seats
Not listed
75,000–99,999 licences
Checked 15 Oct 2026
CKMS 250–999 seats
Not listed
250–999 licences
Checked 15 Oct 2026
CKMS 100,000+ seats
Priced on request
100,000+ licences
Checked 15 Oct 2026