Mail addresses under your own domain (info@deinedomain.de, kontakt@deinedomain.de) are part of every webhosting plan. Plesk makes creating them easy. Here’s what you need and how it works.
Prerequisites
- The domain is set up in Plesk
- DNS points to our servers (MX record set automatically)
- DKIM/SPF/DMARC are in the DNS settings — we configure that automatically during plan setup
You can create mailboxes right away.
Creating a mailbox
In Plesk: Domain → Mail → +.
Fields:
- Email address: the local part (e.g.
info) — the domain is appended automatically - Password: pick a strong one, at least 12 characters (or let Plesk generate one)
- Mailbox size:
- “Default size” (from the service plan) — typically 1 GB
- “Another size” — your own limit per mailbox
Optional:
- Description: an internal note on what the mailbox is for
- Language for system mails (auto-reply etc.)
Click Create — the mailbox is active immediately.
Choosing the mailbox size
Per plan:
- Start: 100 mailboxes
- Pro: 500 mailboxes
- Power: 1,000 mailboxes
- Max: 2,000 mailboxes
The default size per mailbox is 1 GB, adjustable when creating it. Mailbox size counts against your disk space quota — 10 mailboxes at 5 GB each use up 50 GB of web space.
Connecting a mail client
As soon as the mailbox exists, you can connect with any standard mail client. IMAP/SMTP server details:
- IMAP server:
mail.deinedomain.de, port993, SSL/TLS - SMTP server:
mail.deinedomain.de, port465(SSL) or587(STARTTLS) - Username: the full mail address (
info@deinedomain.de) - Password: the mailbox password
Detailed setup guides per mail client: Setting up mail in your mail client.
Webmail login (Roundcube)
Directly in the browser without a mail client: https://webmail.deinedomain.de (or via Plesk: mailbox → webmail icon).
Log in with mail address + password.
More in Webmail with Roundcube.
Generated password vs. your own
Plesk default: let it generate a strong password.
If you’re creating a mailbox for someone else (staff, family member):
- copy the generated password
- hand it over securely (not by email — rather via password manager sharing or an encrypted note)
- the recipient changes it on first login
In the Plesk mail settings, the recipient can change their own password themselves.
Renaming a mailbox
In Plesk: click the mailbox → General → change the email address.
Careful: for an active mailbox with incoming mail, keep the old address as an alias — otherwise mail to the old address is lost.
Deleting a mailbox
Right-click the mailbox in the list → Delete.
Plesk asks: delete the contents too? — if you want to keep the mail, download it via an IMAP client or take a backup first.
The safe way: empty the mailbox first (archive all mail), then delete it.
Catch-all mailbox
“Catch-all” means: all email to your domain that has no specific mailbox lands in one collecting mailbox.
Example: someone writes to paul@deinedomain.de, but you only have info@ and kontakt@. With catch-all, the mail isn’t rejected but routed to the catch-all mailbox.
In Plesk: Domain → Mail → Mail Settings → enable catch-all address → pick a mailbox.
Careful: catch-all collects a lot of spam. Spammers systematically try random addresses. Only enable it if:
- you look through the catch-all regularly
- the spam filter is set strictly
- you don’t want to miss mail arriving with typos
Default: catch-all off, so mail to made-up spam addresses never reaches you.
Plesk account mail address vs. a real mailbox
Plesk distinguishes between:
- Plesk login mail address (avatar → profile) — for Plesk notifications, Plesk login
- Domain mailboxes (Domain → Mail) — the real email addresses under your domain
Both can be the same (e.g. info@deinedomain.de as your Plesk login AND as a mailbox), but they don’t have to be.
DKIM/SPF/DMARC
To keep your mail out of spam folders, three DNS records matter:
- SPF: defines which servers may send mail for your domain
- DKIM: a cryptographic signature on every outgoing mail
- DMARC: the policy on SPF/DKIM failure
In xaweho setups, all three are set automatically in your DNS — nothing to configure.
If you use external mail senders (newsletter tool, transactional mail service): we have to add them to the SPF — open a ticket.
Frequently asked questions
How many mailboxes can I create? Depends on the plan: Start 100, Pro 500, Power 1,000, Max 2,000.
Mailbox quota full — what happens? Incoming mail is rejected with a bounce. The sender gets notified. Fix: archive mail or raise the mailbox quota.
Can two people share a mailbox? Yes, several devices can log in via IMAP at the same time. The mail client syncs.
What if I change my Plesk plan — do the mailboxes move with it? For a plan upgrade, yes. For a provider change: a separate mail migration. More in Migrating mail accounts.
How long is mail kept? As long as you have the mailbox and don’t delete it. Plesk does no automatic cleanup.
Push notifications for new mail? IMAP push (IMAP IDLE) is supported. iPhone/Android mail clients show pushes with minimal latency.
Spam filter — how strict?
Standard SpamAssassin configuration. Spam mail lands in the Spam folder. More in spam and antivirus settings (covers spam too).
Mail aliases, auto-responders, forwarding — where? Same area, more in Mail aliases, forwarding, auto-responders.
Using a mailbox for sending newsletters? Better not. Webhosting mail is built for normal volumes (a few mails per day per mailbox). For newsletters (1000+ mails), use a dedicated mail sending service (Mailgun, SendGrid, Postmark).
What’s next
First login to Plesk
What you get after ordering, how to log in to Plesk for the first time and what to set up right away.
Plesk dashboard and navigation
How Plesk is structured: left navigation, domain list, tabs per domain, service plan limits. So you don't have to go hunting.
Domain overview and web space
What the domain detail page shows: document root, creating subdomains, DNS status, web space quota. So you know your way around your main domain.
File Manager in the browser
Upload files, edit them, set permissions — all in Plesk's built-in File Manager. When it's enough, and when FTPS is the better choice.