What is the difference between sending a mass email once and sending a single email multiple times. What are the pros and cons?

  • Are you referring to sending the emails from Apex, or from the UI?
    – zachelrath
    Commented Nov 20, 2012 at 16:09

1 Answer 1


Mass Emailing


  1. Is generally faster for the user (you go through a wizard once instead of once per contact.)


  1. Cannot customize the email template on a per-contact basis
  2. Might not be able to create a filter to select the recipients
  3. Visualforce email templates cannot be used

Individual Emailing


  1. Can customize the email template before sending if you select a text template
  2. Does not require Extended Mail Merge to be activated
  3. Does not require a filter to select recipient


  1. Time consuming for a large number of emails
  • I think a big difference is that you can't use a visual force template for mass email. So you have to use individual email. I was wondering is there any difference in limits?
    – dublintech
    Commented Nov 20, 2012 at 16:26
  • 1
    I added that con, @dublintech, but if you think of others feel free to update this answer - that's why I marked it as a community wiki.
    – Mike Chale
    Commented Nov 20, 2012 at 17:32
  • @Mike Chale great idea.
    – dublintech
    Commented Nov 21, 2012 at 10:13

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