491 results for «e-mail» (page 47 of 50)
-
Connecting to MySQL from PHP: mysqli and PDO, with a working example
PHP has two ways of talking to the database: mysqli (MySQL and MariaDB only) and PDO (which also serves PostgreSQL and others). For a new project PDO is the safe…
-
Track Delivery: finding out what happened to a message you sent
“I sent it, and they say they did not receive it.” Instead of guessing, cPanel has a screen that shows the trail of each message that went through the server:…
-
Query strings explained: what comes after the question mark, and what it changes
The short answer: everything after the ? in an address is the query string: name=value pairs separated by &, up to the end of the address or a “#”. The…
-
Webmin and Virtualmin on a VPS: a server admin tool and a hosting panel, explained
This article is for people with a VPS or a dedicated server with root access. On shared plans the panel is cPanel, and you neither choose nor install another one.…
-
Moving to cPanel from Plesk, DirectAdmin or another panel: what moves and what you rebuild
A control panel is just the shop window for five things that exist on any server: files, databases, mailboxes, DNS records and scheduled tasks. So changing panels means copying those…
-
Several websites on one plan: how many fit before you need the next step
As many as the plan counts and the resources can carry, and those are two different sums. The first is a matter of numbers: each plan says how many sites…
-
Lowering the TTL before a migration: the timeline that keeps the switch short
The short answer: the TTL tells every cache how long it may keep an answer, counted from the moment it asked. So at the moment you change a record, the…
-
The security certificate warning in Outlook: what it means and how to stop it
The short answer: the warning “The server you are connected to is using a security certificate that cannot be verified” appears when the server name you typed in Outlook does…
-
Error 421 and 451: temporary failures, and why the message is delayed and not lost
An error that starts with a 4 (421, 450, 451, 452) is a “not now, try later” reply. It is not a refusal. The server that sent the message keeps…
-
Moving from the classic Outlook to the new one: what comes with you and what does not
The short answer: when moving from classic Outlook to the new one, mail from IMAP accounts comes by itself, because it is on the server. What may stay behind is…





