=> Bootstrap dependency digest>=20010302: found digest-20160304
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
=> Fetching neomutt-20170421.tar.gz
=> Total size: 2733547 bytes
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file neomutt-20170421.tar.gz

ftp: transfer aborted because stalled for 11 sec.
checksum: Checksum SHA1 mismatch for neomutt-20170421.tar.gz
fetch: Checksum of the file neomutt-20170421.tar.gz doesn't match.
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file neomutt-20170421.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file neomutt-20170421.tar.gz
neomutt-20170421.tar.gz: No such file or directory.
fetch: Unable to fetch expected file neomutt-20170421.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file neomutt-20170421.tar.gz
neomutt-20170421.tar.gz: No such file or directory.
fetch: Unable to fetch expected file neomutt-20170421.tar.gz
ftp: Error retrieving file `404 Not Found'
fetch: Unable to fetch expected file neomutt-20170421.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
checksum: Checksum SHA1 mismatch for neomutt-20170421.tar.gz
ERROR: Make sure the Makefile and checksum file (/data/pkgsrc/mail/neomutt/distinfo)
ERROR: are up to date.  If you want to override this check, type
ERROR: "/usr/bin/make NO_CHECKSUM=yes [other args]".
*** Error code 1

Stop.
make: stopped in /data/pkgsrc/mail/neomutt