Answers.Body: <p>In our case, we don't make any use of a contact with someone else's email address.</p>
  
  <p>We ended up just training everyone to make sure that the Remove Duplicate Email is always checked.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-04-10T20:32:50.230Z
Answers.LastActivityDate: 2016-04-10T20:32:50.230Z
Answers.UserDisplayName: pmoz
Answers.Body: <p>A very old question - but this is possible by going to <strong>Administer menu » CiviMail » CiviMail Component Settings</strong> and checking the box labeled <em>CiviMail dedupes e-mail addresses by default</em>.</p>
  <p>Note that this box is checked by default on new installations of CiviCRM and has been for years, so this should only affect folks who have had CiviCRM for a very long time.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-07-13T14:44:04.823Z
Answers.LastActivityDate: 2022-07-13T14:44:04.823Z
Answers.UserDisplayName: Jon G - Megaphone Tech
Body: <p>According to book.civicrm.org:</p>
  
  <blockquote>
    <p><strong>Remove duplicate emails:</strong> CiviCRM will always dedupe your mailing based on unique contact records. For example, if a contact is in three
    of the groups you are including in your mailing, they will only be
    sent one copy of the email. However, if the same email is used by
    multiple contacts, that email address will receive multiple copies of
    the email—one for each contact using that address. Checking this box
    will ensure only one email is sent to each address</p>
  </blockquote>
  
  <p>We do have some different contacts that use the same email address.</p>
  
  <p>We would like to set up CiviMail so that it always removes duplicate email addresses and take it out of folk's hands.</p>
  
  <p>I see the check box on the create a new mailing page but would always like this behavior.  In fact, I can't see why you wouldn't want it to always remove them.</p>
  
  <p>Is anyone aware of a way to set this as a default?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-08-19T05:47:01.843Z
Comments.Text: Re: "In fact, I can't see why you wouldn't want it to always remove them."  If the email contains a checksum link to a profile then you would want each person to receive their own email, so the each can access their own profile.
Comments.UserDisplayName: JoAnne
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-08-19T08:36:24.220Z
Comments.Text: Good info JoAnne!
Comments.UserDisplayName: pmoz
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-04-02T00:25:34.897Z
Comments.Text: JoAnne - want to add as an answer then ;-) SE likes answers
Comments.UserDisplayName: petednz - fuzion
Tags: <civimail><contacts>
Title: How do I set up CiviMail to automatically remove duplicate email addresses?
ThreadText: # How do I set up CiviMail to automatically remove duplicate email addresses?
  
  (Asked by: username_0 on 2015-08-18)
  
  According to book.civicrm.org:
  
  > **Remove duplicate emails:** CiviCRM will always dedupe your mailing based on unique contact records. For example, if a contact is in three
  > of the groups you are including in your mailing, they will only be
  > sent one copy of the email. However, if the same email is used by
  > multiple contacts, that email address will receive multiple copies of
  > the email—one for each contact using that address. Checking this box
  > will ensure only one email is sent to each address
  
  We do have some different contacts that use the same email address.
  
  We would like to set up CiviMail so that it always removes duplicate email addresses and take it out of folk's hands.
  
  I see the check box on the create a new mailing page but would always like this behavior. In fact, I can't see why you wouldn't want it to always remove them.
  
  Is anyone aware of a way to set this as a default?
  
  **Tags:** civimail, contacts
  
  > **Comments:**
  > **username_1**: Re: "In fact, I can't see why you wouldn't want it to always remove them."  If the email contains a checksum link to a profile then you would want each person to receive their own email, so the each can access their own profile.  
  > **username_0**: Good info username_1!  
  > **username_2**: username_1 - want to add as an answer then ;-) SE likes answers  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2016-04-10. Score: 0 | Accepted answer
  
  In our case, we don't make any use of a contact with someone else's email address.
  
  We ended up just training everyone to make sure that the Remove Duplicate Email is always checked.
  
  
  ---
  
  ### Answer by username_3 on 2022-07-13. Score: 0
  
  A very old question - but this is possible by going to **Administer menu » CiviMail » CiviMail Component Settings** and checking the box labeled *CiviMail dedupes e-mail addresses by default*.
  
  Note that this box is checked by default on new installations of CiviCRM and has been for years, so this should only affect folks who have had CiviCRM for a very long time.
  
  
  ---
  
  