If anyone is interested, here is the current split
on network mail software in use on the network:

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Statistics for:                   1/93        2/93        4/93
                                  ~~~~        ~~~~        ~~~~
.QWK-Type Systems:                 63          58          71
PCRelay Systems:                   18          17          16
NetMail Systems:                   14          14           4
National HUB:                       1           1           1
                                 ------      ------      ------
Total Systems on the Network:      96          90          92

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Hub Statistics for:               1/93        2/93        4/93
                                  ~~~~        ~~~~        ~~~~
National Hub:                       1           1           1
Regional Hubs:                     16          15          16
Local Hubs:                         8           9           9
Cross-Network Links:                3           3           2
                                 ------      ------      ------
Total Hubs on the Network:         28          28          28

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Mail Programs Run by Hubs for:    1/92        1/93        4/93
                                  ~~~~        ~~~~        ~~~~
.QWK Mailers:                      20          20          23
PCRelay 4.1:                        9           8           8
NET/Mail 4.0+:                     10           6           4

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