Receive, Send & Forward emails with your own domain

Share engineering lesson that help us build an email forwarding service that support webhook, Email API, CLI

Tracing Http Requests by Using Response Header From the Application

The problem When our users send a support tickets, we usually want to see what the user did, what step they made to try re-produce the problems. Or sometime an error popup in our error tracking tool, and we would like to see what our user did to re-produce it. Or sometime if we detect that user is repeated trying to do some actions, it could mean a feature didn’t work as expected and our users is frustrated to do something, we will see and fix it....

May 30, 2021 · 3 min · Vinh

We are rebranding Hanami as Mailwip

We’re rebranding Hanami as Mailwip For existing customers, nothing change in your domains or DNS config. We want to emphasize that No action is require on your end as an existing customer. All existing addresses that you have been configuring such as,, and will continue to work forever as they were. Our public facing website are now On July 15, when you visit any public facing address with our *....

May 28, 2021 · 3 min · Vinh

2021-05-17 SMTP Incident

Between 15:00UTC and 22:00UTC our email forwarding was being slow or delay. Customers experience slower mail delivery up to 30 minutes. First of all, we’re really sorry for any inconvenience that cause you. Wheneve you feel uncomfortable, simply login to the dashboard to chat with us. What happen Around 15:00UTC, we started to have a spike in our mail requests, a big customer started to forward thousdand of emails every hour non stop and cause a network bandwidth spike....

May 17, 2021 · 1 min · Vinh, Ruby

The Quirks of Gmail Ui

A Tale of DKIM signed email I run a mailwip(former hanami), an email forwarding service and I have a few stories about email that I want to share. Today I want to talk about Gmail. Gmail is a big player in email world. It dominates small and medium startups. All of companies that I worked for has been using gmail. Even mailgun or postmarkapp use gmail. Gmail is no doubt really great....

March 9, 2021 · 2 min · Vinh

Cleanup Docker

If you do heavy development with docker without a cleanup strategy soon your disk will fill at the time you really have to ship something out ASAP because production is on-fire but you cannot because docker refused to let you do anything with it. When we run a process in our computers, once that process is done, everything is tear down together with it. Container is how many of us operating our infrastructure nowaday....

February 11, 2021 · 3 min · Vinh

Welcome to Hanami

Why Every time I tried to start a company or a project, I needed an email to associate email to us. Setting up a full mail suite requires time, effort and commitment. I just need a very easy and intuitive way with a few clicks to give me ability of receiving email to my domain. On the other hand, it’s great to have email tailored to our name or our personal identity instead of trying to be creative for an email address that is still available on a public service like Gmail....

February 10, 2021 · 2 min · vinh