performance of bulk emailing using system net mail

Question

I have been asked to look into a bulk emailer for an intranet system and wanted some advice.

Currently we use System.Net.Mail and send the emails synchronously via the c

Answer 1

Sending to a distribution list will be faster for the sender (you only send 1 email). However, the EMail server still has to send an email to all the users on that list, so it only saves 50% of the time.

However, large email lists do have drawbacks.