The Deliverable Diary

Most email attachment size guides give you a number and call it done. The problem is that the number on the box isn’t the number that actually sends. Encoding adds weight, recipient servers have their own caps, and a 24 MB file can bounce off a 25 MB limit without ever reaching an inbox. This […]

Transactional SMS is the text your customer gets the second something happens on their account. The shipping label is printed. The login attempt fires. The appointment is 30 minutes out. It’s automated, it’s triggered by an event, and it carries information the recipient actually wants. Marketing? That’s a separate animal with separate rules. This guide […]

SMTP relay is the service that takes an outgoing email from your app, website, or device and hands it off to the recipient’s mail server on your behalf. If you send more than a handful of emails a day, especially the automated ones (password resets, order receipts, alerts, newsletters), you’re almost certainly relying on a […]

Streamline domain and email management with our cPanel Automation Plugin. The updated version has been released; it includes some fixes and resolves the recent authentication issue. Managing dozens – or even hundreds – of customer domains and email services can be a serious time sink. If you’re a hosting provider juggling DNS settings, SMTP configurations […]

You set up Gmail to send from your business address. Looks fine on your end. Then a client replies and you spot it: their email shows your message as coming from you@gmail.com on behalf of you@yourcompany.com. Not a great look when you’re trying to look like a real company. The good news is this is […]

We are thrilled to announce that SMTP2GO has been ranked as the #1 best free SMTP server by EmailToolTester for 2026 (3 years in a row now!). This recognition highlights our commitment to providing reliable, efficient and user-friendly email delivery solutions. Check out the full article.  What EmailToolTester Had to Say About Us EmailToolTester recently […]