Email providers look for a number of factors when deciding whether to automatically send your emails to spam. If you’ve
Single opt-in maximizes list growth in exchange for taking on higher deliverability risks, while double opt-in minimizes deliverability risks in exchange for slower list growth.
Permission to send email to your subscribers comes in many forms, ranging from weak to strong. Obtaining permission, or consent,
SendOffice is a proponent of explicit prior permission (opt-in) and strongly recommends double opt-in (subscription confirmation), even if this is