How to Access Your Plesk Mailbox in Gmail

This guide shows you how to read and send mail from a Noiz mailbox, hosted in Plesk, using Gmail. It is written for people who already live in Gmail all day and would rather not run a second inbox for their domain mail. Gmail can do this, and thousands of businesses run their domain mail this way, but there is one thing to understand before you start, because it decides which of the two routes below you should take.

Gmail on the web and the Gmail app on your phone are not equally capable here. The Gmail app can connect to a Noiz mailbox over IMAP, which keeps everything in sync properly. Gmail in a web browser cannot: it can only collect your mail over POP, which is a one-way download. That single difference changes what you get, and it is the reason this guide is split in two.

Last reviewed: 29 July 2026, against Gmail on the web and the current Gmail mobile app, with a mailbox hosted in Plesk on Noiz. This guide is written for Noiz hosting and is kept current against Gmail. It complements, and does not replace, the official Google documentation linked below. Google changes the Gmail settings screens regularly: where a screen differs from what is described here, the field names and the values you enter stay the same even when their arrangement moves.

Official Documentation Reference

Check emails from other email accounts (Google): Google’s own page for the POP collection feature used in the web route below, including its five-account limit.
Send emails from a different address or alias (Google): the “Send mail as” feature, which is the half of the setup that lets you reply from your own domain.
Add or remove your email account in the Gmail app (Google): the mobile route, and the only one that offers full IMAP.
Access your mailbox (Plesk Customer Guide): Plesk’s overview of the ways to reach a mailbox. It does not cover Gmail, which is why this guide exists.

Prerequisites

The mailbox already exists on the Noiz mail server. If you have not created it yet, do that first: see How to Create an Email Address in Plesk.
You know the full email address, for example [email protected], and its password. The username for Noiz mail is always the full email address, never just the part before the @. If you have lost the password you can reset it from Plesk: see How to Log In to Plesk.
You can reach the mailbox at least once through Plesk webmail. The web route below requires you to open a verification message that Google sends to the mailbox, and webmail is the simplest place to read it.
A Gmail account. A free @gmail.com account is enough; a Google Workspace account works the same way.
Your domain’s mail is hosted at Noiz. If the domain was pointed to Noiz recently, allow DNS changes time to take effect before mail.yourdomain.com will resolve.

Understand What Each Route Gives You

Read this section before you choose. It is short, and it saves undoing a setup later.

	Gmail app (IMAP)	Gmail on the web (POP)
Protocol	IMAP	POP only
Folders on the server	Visible and in sync	Not visible. Only new mail in the inbox is collected
Read, deleted and filed status	Syncs both ways	Does not sync back to the server
New mail arrives	Promptly	When Google next checks, which can be up to an hour
Sending as your own address	Handled during setup	Needs a separate “Send mail as” step
Accounts you can add	No practical limit	Five

The practical rule: if you want your domain mail to behave like a real mailbox, use the Gmail app route. Use the web route when you specifically want everything funnelled into one browser inbox and you accept that it is a one-way copy.

Many people end up doing both, and that is fine, but only if you set POP to leave a copy of each message on the server. That setting is covered below, and getting it wrong is the single most common way people lose mail in this setup.

The Noiz Mail Settings

These are the settings a Noiz mailbox uses in any mail program, Gmail included. Wherever you see yourdomain.com, replace it with your own domain.

Setting	Incoming, IMAP (Gmail app)	Incoming, POP (Gmail web)	Outgoing, SMTP (both)
Server / hostname	`mail.yourdomain.com`	`mail.yourdomain.com`	`mail.yourdomain.com`
Port	`993`	`995`	`465`
Encryption	SSL/TLS	SSL/TLS	SSL/TLS
Username	Your full email address, for example `[email protected]`
Password	The mailbox password

Two points that catch people out:

The username is the whole address, including @yourdomain.com. A username of just you will fail to authenticate.
Noiz uses SMTP on port 465 with SSL/TLS. Gmail’s “Send mail as” screen offers 465, 587 and 25; choose 465 and Secured connection using SSL. Do not use the unencrypted ports (143, 110 or 25), which Noiz mail does not accept.

Route 1: The Gmail App on Your Phone (IMAP, Recommended)

This is the better route. The Gmail app treats a Noiz mailbox as a real IMAP account, so folders, and the read or unread status of every message, stay in step with Plesk webmail and any other device.

Open the Gmail app.
Tap your profile picture at the top right, then Add another account.
Choose Other (IMAP) from the list of account types. Do not choose Google, Outlook or Yahoo.
Enter your full Noiz email address, for example [email protected], then tap Next.
If you are offered a choice, select Personal (IMAP).
Enter the mailbox password, then tap Next.
On the Incoming server settings screen, confirm the server is mail.yourdomain.com, the port is 993 and the security type is SSL/TLS. Correct them if the app has guessed differently.
On the Outgoing server settings screen, set the SMTP server to mail.yourdomain.com, the port to 465 and the security type to SSL/TLS. Leave Require sign-in ticked and confirm the username is your full email address.
Tap Next, choose your sync preferences, and finish.

Your Noiz mailbox now appears alongside your Gmail account in the app’s account switcher. Send yourself a short test message and reply to it, to confirm that sending and receiving both work.

The account you have just added is a normal IMAP account, so the same settings work in any other mail program if you later decide to use one. Thunderbird and Microsoft Outlook are both covered separately.

Route 2: Gmail in a Web Browser (POP)

Gmail on the web cannot connect to a third-party mailbox over IMAP. It can only fetch mail over POP, and sending is configured separately. That means this route is two jobs, not one, and you need both halves. If you set up only the first, your domain mail will arrive in Gmail but every reply will go out from your @gmail.com address, which is rarely what anyone wants.

Part 1: Collect Your Mail (Receiving)

Open Gmail in a browser, click the Settings gear at the top right, then See all settings.
Go to the Accounts and Import tab.
Beside Check mail from other accounts, click Add a mail account.
Type your full Noiz address, for example [email protected], and click Next.
Choose Import emails from my other account (POP3) and click Next.
Fill in the POP settings:
- Username: your full email address, for example [email protected]
- Password: the mailbox password
- POP Server: mail.yourdomain.com
- Port: 995
Tick Always use a secure connection (SSL) when retrieving mail. This must be ticked, and the port must read 995, or the connection will be refused.
Tick Leave a copy of retrieved message on the server. Read the warning below before you decide otherwise.
Optionally tick Label incoming messages so domain mail is easy to pick out from your personal Gmail.
Click Add Account.

Leave a copy on the server, unless you are certain. POP’s traditional behaviour is to download each message and then delete it from the server. If you untick that box, every message Gmail collects disappears from the Noiz mailbox, which means it vanishes from Plesk webmail, from your phone, and from any other device. It is also no longer covered by mail backups on the server. Leaving a copy costs you nothing except mailbox space, and it is what almost everyone should do.

Part 2: Send From Your Own Address

Gmail will now offer to let you send from the address as well. If you skipped that prompt, this is how to do it afterwards.

Still in Settings, on the Accounts and Import tab, find Send mail as and click Add another email address.
Enter the Name you want recipients to see, and the full address, for example [email protected].
Leave Treat as an alias ticked unless you have a specific reason not to, then click Next Step.
Fill in the SMTP settings:
- SMTP Server: mail.yourdomain.com
- Port: 465
- Username: your full email address
- Password: the mailbox password
- Select Secured connection using SSL
Click Add Account. Google sends a verification message to the mailbox.
Open that message and click the confirmation link, or copy the code into Gmail. The quickest place to read it is Plesk webmail, because Gmail’s own POP collection may not run for another hour.

Once verified, set the address as your default if your domain mail is the mail you send most: on the Accounts and Import tab, click make default beside the address. When composing, the From line lets you switch between addresses.

Things Gmail Does Not Do Well With a Custom Domain

None of these are faults in your mailbox. They are how Gmail works, and knowing them up front prevents a support ticket later.

POP collection is on Google’s schedule, not yours. Gmail decides how often to check, and the gap can stretch to an hour on a quiet mailbox. If you need mail the moment it arrives, use the Gmail app route, Plesk webmail, or a desktop client. There is no setting that makes web Gmail check on demand reliably.
Only the inbox is collected. POP fetches new messages from the inbox. Mail already filed into folders on the server, and anything a server-side filter moved out of the inbox, will not appear in Gmail.
Nothing syncs back. Reading, deleting or filing a message in web Gmail changes nothing on the Noiz server. If you also use webmail or a phone, the same message will still be sitting there unread.
Five accounts is the ceiling. Gmail on the web will collect from at most five external accounts.
Your mail is copied into Google’s infrastructure. Anything Gmail collects is stored on Google’s servers and processed there. If keeping your business mail on Noiz infrastructure matters to you, whether for privacy, data residency or POPIA reasons, use Plesk webmail or a mail client such as Thunderbird, both of which talk to the Noiz server directly.
Sending still goes through Noiz. Because “Send mail as” is configured against the Noiz SMTP server, your outgoing mail is authenticated as your mailbox and carries your domain’s reputation, which is what you want for deliverability. Do not be tempted to remove the SMTP settings so that Gmail sends on your behalf instead.

Troubleshooting

Symptom: “Authentication failed” or “Username and password not accepted”. Almost always the username. It must be the full address, [email protected], not you. Confirm the password by signing in to Plesk webmail with the same credentials; if webmail rejects them too, reset the mailbox password in Plesk.

Symptom: “Could not connect to server” or the request times out. Check the port and the encryption together. POP must be 995 with SSL ticked, and SMTP must be 465 with “Secured connection using SSL” selected. A mismatched pair, such as port 995 with SSL unticked, fails in exactly this way.

Symptom: the server name is not recognised. Confirm that mail.yourdomain.com resolves. On a domain recently pointed to Noiz, this can lag behind the rest of the DNS changes. As a temporary measure the server’s own hostname will also work, but mail.yourdomain.com is the correct long-term value.

Symptom: the verification message never arrives. Look in the mailbox directly through Plesk webmail rather than waiting for Gmail to collect it, and check the spam folder. Google’s verification mail is sent to the mailbox itself, so it is there even when Gmail has not fetched it yet.

Symptom: replies go out from your @gmail.com address. The “Send mail as” half was not completed, or the domain address was never made the default. Return to Part 2 above.

Symptom: mail has disappeared from webmail and your phone. The “Leave a copy of retrieved message on the server” box was not ticked, so Gmail has been deleting each message after collecting it. Tick it now to stop further losses. Messages already collected still exist inside Gmail and can be forwarded back to the mailbox, but they are no longer on the server.

For anything not covered here, the general guide is Why Is My Email Not Working? An Email Troubleshooting Guide.

Still Stuck?

If the mailbox works in Plesk webmail but will not connect from Gmail, the problem is in the Gmail configuration rather than the mailbox, and the settings table above is the place to start. If webmail will not accept the password either, the mailbox itself needs attention. Open a ticket from the Noiz client area with the address you are configuring, the route you chose, and the exact wording of any error Gmail showed you, and Noiz support will pick it up from there.