You can send mail to directly:

The mail must be in plain ASCII in all its parts.

Compulsory Subject line:  
Subject: Ocean Loading Tides

The Header line must be exact (a test against spam will weed out all mail not exactly reading like this).

The equal sign after a keyword must be surrounded by one whitespace left and right.

The column structure for site coordinates is:
24 characters for the station, 25'th column blank, then three numerical fields with a width of 16 characters each, no TAB characters please!)
You can give XYZ in meter as in the example,
or longitude, latitude in degrees (decimal point format, not minutes,seconds), and height in meter.
At maximum 100 sites can be processed in one request.

For Model choose any of the following:

AG06    CSR4.0    EOT08a   FES94.1  FES2014b GOT99.2b  HAMTIDE   TPXO.6.2  TPXO.7.2
DTU10   CSR3.0    EOT11a   FES95.2  FES2012  GOT00.2   NAO.99b   TPXO.5    TPXO.7.1
                           FES98    FES2004  GOT4.7    Schwiderski         TPXO.7.0

For LoadingType choose any of the following
      displacement .
      gravity           (units: μm/s2)
      mgal               (gravity in units of mGal)

For CMC choose any of the following
      0                   (reference origin is solid earth centre)
      1                   (reference origin is joint mass centre earth+ocean)

For OutputFormat choose any of the following

If you like to see plots of the near-field coastline resolution, add a line
       Plot = 1
preferably before the station information.

If you send mail from UNIX/LINUX using sendmail:
sendmail -t < request.txt
where request.txt  starts with
From : your@address
Note the blankspace after "From". Continue as above with  "Subject:"  etc.