In the setup chapter we discussed setting up and configuring Email lists. In this chapter we are going to delve a bit further into list management and discuss compliance. It is important that you keep you email lists healthy with low rates of bounced emails and unsubscribes.
There is always fear of the dreaded 'blacklist' if you have very high bounce rate, or the fear of being scolded by your SMTP provider for the same. However, the reality is high bounce rates and unsubscribes typically represent a deeper organization issue... and that's really scary.
Each time you send a bulk email from CiviMail it's possible that some of the emails will bounce. Hopefully, only a few. Bounces happen for many reasons; some may be temporary, others permanent.
If the email bounces, it means it never reached that recipient. It can happen for a number of reasons, including the following:
CiviCRM handles different bounce types differently. Whereas temporary bounces will have no affect on a contact record and CiviCRM will attempt to send future mailings to this address, permanent bounces may put a contact email on Hold. When an email is on Hold, no future emails will be sent to it unless someone fixes it and removes the hold.
A detailed table of each type of bounce and the number of bounces allowed before an address is put on hold is available on the wiki at: http://wiki.civicrm.org/confluence/display/CRMDOC/Bounce+Handling
Basically you have two options if an email address gets put on hold. You can either unhold them or fix/delete them.
To release a hold:
To correct/update held emails you'll first need to create a group(s) for bad emails, then:
Emails that have been held are different from emails that have been unsubscribed. Unsubscribers have clicked the linked text in an email that said “unsubscribe from this mailing”. This link is created by one of these tokens in an email: {action.unsubscribe} or {action.unsubscribeUrl}
Email recipients who unsubscribe from a single mailing list will simply be removed from the group you used as a mailing list to send to.
Email recipients also have the option of not receiving any bulk emails from you by clicking a link you provide in every mass email. This is called "opting out". You can still send individual or small volume emails to someone who has opted out using the Send Email action which is accessible via the contact's record or after a search. Scheduled reminders will also still be sent to contacts who have opted out. You should be very careful about the emails you send to someone who has opted out if you do not want to be accused of sending spam.
To opt out, an email recipient can click the linked text in an email created by one of these opt-out tokens: {action.optOut} {action.optOutUrl}
You can include these tokens directly in the body of your mailing or in a footer message. (For more on tokens, see here: http://wiki.civicrm.org/confluence/display/CRMDOC/Tokens. For more on footers, see the previous section in this chapter, Set up > Creating headers and footers.)
If a contact has this option selected then you will not be able to send them individual or small volume emails using the Send Email action reached via the contact's record or after a search. They will not receive bulk emails sent through CiviMail, either. However they will still be sent scheduled reminders unless you specifically exclude them from those reminders. If the Do not email option is set manually after someone has contacted you in person, it is probably a good idea to exclude them from scheduled reminders. The Schedule Reminders chapter outlines how to do that.
Due to user error, there is always a chance that someone could change CiviCRM settings incorrectly or manually misuse an email address. The only way to fully guarantee that a contact doesn't receive any emails is to remove all email addresses from the contact's record. However, in this case the contact would not be able to log in to your website.