Setting the SMTP Server
KBA-01019-ZMPLJL
Problem
When testing on different browsers I noticed that Tell My Friend module behaves differently and sometimes erratically.
Solution

Erratic behaviour can be cause in DNN by cache settings. While the module is likely to perform well for end users, testing rapidly can play havoc.

You can change two settings if you wish to ensure that tests are consistent.

  1. HOTS / MODULE DEFINITIONS / iWebs - TellMyFriends 
    Ensure that the default cache time is set to 0
  2. HOST / HOST SETTINGS / PERFORMANCE SETTINGS
    Set No Cache for Performance Settings and for Authenticated Cacheability

You can, and should leave the Compression on, unless your IIS server has been configured to Compressions on.

Additional Comments
The issue can be caused by cache playing with the repeat of access to the module. Because an end users is not likely to repeat hit the module, it should not be a problem at their end.



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