fetchmail, SSL is not enabled at ssl

why does fetchmail give this message and then quit?
the syntax of ~/.fetchmailrc looks correct.
i have the right openssl libraries.
i can show that ssl authentication works.

$ fetchmail --mda 'procmail -d lh'
fetchmail:/home/lh/.fetchmailrc:10: SSL is not enabled at ssl

$ cat ~/.fetchmail
poll mail.someisp.net
  proto POP3
  port 995
  user '[[email protected]](mailto:[email protected])'
  there with password 'vxxv'
  is '[[email protected]](mailto:[email protected])' here
  mda "/usr/bin/procmail -d %T"
options
  no keep
  ssl
  sslcertck
  sslcertpath /etc/ssl/certs/

$ openssl s_client -connect mail.someisp.net:995 -showcerts
CONNECTED(00000003)
depth=2 C = US, ST = Arizona, L = Scottsdale, O = "GoDaddy.com, Inc.", CN = Go Daddy Root Certificate Authority - G2
verify return:1
depth=1 C = US, ST = Arizona, L = Scottsdale, O = "GoDaddy.com, Inc.", OU = http://certs.godaddy.com/repository/, CN = Go Daddy Secure Certificate Authority - G2
verify return:1
depth=0 OU = Domain Control Validated, CN = *.userservices.net
verify return:1
---
Certificate chain
... ## text omitted

$ fetchmail -V
This is fetchmail release 6.3.22+NLS.
... ## text omitted

$ uname -a
CYGWIN_NT-10.0 hoho 2.10.0(0.325/5/3) 2018-02-02 15:16 x86_64 Cygwin

$ cygcheck -csv

Cygwin Package Information
Last downloaded files to: h:\hx
Last downloaded files from:

Package                                 Version                    Status
... ## text omitted
fetchmail                               6.3.22-1                   OK
... ## text omitted
libopenssl100                           1.0.2o-1                   OK
... ## text omitted
openssl                                 1.0.2o-1                   OK
openssl-devel                           1.0.2o-1                   OK
... ## text omitted

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