CiviMail - Next/Send test disabled - Cannot send mass email
As weird as this sounds, if one forgets to enable the resubscribe message and set that for the mailing, it won't work. After setting this, all buttons 'lit up' and mail could be sent. Is it a bug? No. But a little more help within the interface could save a lot of time. A help message like "Did you forget to choose an Opt-out, Resubscribe, and Unsubscribe message? You need all three" They are marked as defaults but guess which one is disabled by default? Resubscribe. Arrgggghhh