The Deliverable Diary

Email marketing has been declared dead more times than anyone can count. In 2026, it’s still here, still cost-effective, and still the highest-ROI channel most marketing teams have. What’s changed is that the bar to make it work has moved up. Inbox providers are stricter. AI is filtering, summarizing, and ranking your emails before subscribers […]

The National Health Service (NHS) is one of the most cherished and respected institutions in the UK. It provides free health care to millions of people every day and employs almost two million staff across various sectors and roles. So, who are NHS Providers? NHS Providers – one of our valued customers – is the […]

You hit send. The recipient never gets it. Back comes a wall of text with something like 550 5.7.26 buried in it, and now you have to figure out which part to actually read. Most pages on this topic give you a flat list of errors and a vague “check your DNS.” That’s not enough […]

Email remains one of the most effective tools nonprofits have for engaging supporters, driving donations and nurturing long-term relationships. Even as new channels emerge, well-crafted email campaigns continue to outperform many other outreach methods by both reach and return on investment. Why Email Still Matters for Nonprofits Email is not just alive. It’s thriving in […]

Microsoft is retiring Basic Authentication for SMTP AUTH Client Submission in Exchange Online. If your printers, scanners, scripts, or legacy applications send email through Microsoft 365 using username and password authentication, they need a new solution before Basic Auth is permanently removed. Here’s everything you need to know about the timeline, impact, and your options […]

You came here for templates. They’re below. But first, the safest default for most people: Subject: Out of office until [return date] Hi, Thanks for your email. I’m out of the office from [start date] and back on [return date]. I’ll reply when I return. For anything urgent before then, please contact [colleague’s name] at […]