Guides
Step by step, with the traps marked. 7 articles.
How to read email headers without guessing
Received lines read bottom to top, Authentication-Results is the verdict, and the timestamps tell you who was slow.
6 min read →Use a subdomain, unless you really mean it
Pointing your main domain’s MX at a new service takes over all of its mail. A subdomain gets you the same feature with none of the risk.
3 min read →Getting to DMARC p=reject without breaking your mail
The policy is the easy part. Finding everything that sends as you is the work.
6 min read →How long should a temporary inbox live?
Long enough for a slow verification email, short enough that it is genuinely gone.
3 min read →What to check before your first campaign
A short list that catches most of what goes wrong on a first send.
5 min read →Shared team inboxes and the things that go wrong
info@ is where messages go to be everybody’s problem and therefore nobody’s.
4 min read →When not to use a temporary address
It is the wrong tool more often than the sites promoting it will tell you.
3 min read →