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Email Hosting Overview

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Email Hosting Overview

This section of the article explains how to manage your mailboxes from the Customer Portal and explains the most frequently asked questions for our Mail hosting platform. All these features are only available if you have a Web Hosting pack or an Email pack with Leaseweb.

How to configure Leaseweb Mail

SPF Records per entity, please use them accordingly.

If you are looking for information on how to configure your email client, please refer to the Configuring Email Settings article.

Email client services for NL customers

HostnameServicesIPv6
mail.leaseweb.comPOP3, POP3s, IMAP, IMAPs✅
smtp.leaseweb.comSMTP (ports 25 and 587), SMTPs✅
webmail.leaseweb.comHTTP, HTTPS (webmail)✅

For US customers

HostnameServicesIPv6
mail.leaseweb.usPOP3, POP3s, IMAP, IMAPs✅
smtp.leaseweb.usSMTP (ports 25 and 587), SMTPs✅
webmail.leaseweb.usHTTP, HTTPS (webmail)✅

For DE customers

HostnameServicesIPv6
mail.leaseweb.dePOP3, POP3s, IMAP, IMAPs✅
smtp.leaseweb.deSMTP (ports 25 and 587), SMTPs✅
webmail.leaseweb.deHTTP, HTTPS (webmail)✅

For CA customers

HostnameServicesIPv6
mail.leaseweb.caPOP3, POP3s, IMAP, IMAPs✅
smtp.leaseweb.caSMTP (ports 25 and 587), SMTPs✅
webmail.leaseweb.caHTTP, HTTPS (webmail)✅

For UK customers

HostnameServicesIPv6
mail.leaseweb.ukPOP3, POP3s, IMAP, IMAPs✅
smtp.leaseweb.ukSMTP (ports 25 and 587), SMTPs✅
webmail.leaseweb.ukHTTP, HTTPS (webmail)✅

For SG customers

HostnameServicesIPv6
mail.leaseweb.sgPOP3, POP3s, IMAP, IMAPs✅
smtp.leaseweb.sgSMTP (ports 25 and 587), SMTPs✅
webmail.leaseweb.sgHTTP, HTTPS (webmail)✅

Information

All smtp.leaseweb.xx requires authentication.

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Mail servers (for MX records)

HostnameRemarksIPv6
mailfilter1.leaseweb.comvirus & spam filter✅
mailfilter2.leaseweb.comvirus & spam filter✅
mailfilter3.leaseweb.comvirus & spam filter✅

For US customers

HostnameRemarksIPv6
mailfilter01.leaseweb.usvirus & spam filter✅
mailfilter02.leaseweb.usvirus & spam filter✅

For DE customers

HostnameRemarksIPv6
mailfilter01.leaseweb.devirus & spam filter✅

For CA customers

HostnameRemarksIPv6
mailfilter01.leaseweb.cavirus & spam filter✅

For UK customers

HostnameRemarksIPv6
mailfilter01.leaseweb.ukvirus & spam filter✅

For SG customers

HostnameRemarksIPv6
mailfilter01.leaseweb.sgvirus & spam filter✅
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Viewing your mailboxes, email aliases, and autoresponders

From the Customer Portal, you can view and manage your mailbox, email aliases, and autoresponders. You can also add a new email account and email aliases. All these features are only available if you have a Web Hosting pack or an email pack with Leaseweb.

  1. In the Customer Portal left panel, under Hosting, select Domain, Hosting & Email.
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  2. From the Hosting Overview page, search for the domain you want to manage and then click the Mailboxes link under the Actions column. Screenshot 2025 10 28 at 09.28.59

Managing a mailbox

You can view, edit, and delete your mailbox.

Creating a mailbox

  1. From the Domain Overview page, click the Manage Mailboxes link under the Actions column for the domain you want to manage mailboxes.
    Screenshot 2025 10 28 at 09.28.59
  2. A list of mailboxes associated with that domain will be listed.
  3. On the Mailbox List page, click Add mailbox button to create a new mailbox.
    Screenshot 2025 10 28 at 10.04.59
  4. In the pop-up, select the Domain to Create mailbox for the main domain. Also, you can set the MX-record for the domain by toggling the button only when DNS records are managed by Leaseweb.
    Screenshot 2025 10 28 at 10.06.44
  5. After you click Create mailbox, new mailbox is created, and you can set the password and other mailbox settings in the settings page.
    Screenshot 2025 10 28 at 10.09.33
  6. You can make the changes and click the Save settings button to update.

After adding your new email account, you can configure it based on the instructions given in this topic: Configuring Email Settings.

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Creating a mailbox for sub-domain

  1. From the Mailbox List page, click Add mailbox.
    Screenshot 2025 10 28 at 10.04.59
  2. In the pop-up, select the Subdomain to create a mailbox for sub-domain. Enter both the mailbox name and the sub-domain name to create a mailbox. Also, you can set the MX-record for the sub-domain by toggling the button only when DNS records are managed by Leaseweb.
    Screenshot 2025 10 30 at 13.00.38
  3. After you click Create mailbox, a new mailbox for sub-domain is created, and you can set a password and adjust other mailbox settings in the settings page.
    Screenshot 2025 10 28 at 10.09.33
  4. You can make the changes and click the Save settings button to update.

After adding your new email account, you can configure it based on the instructions given in this topic: Configuring Email Settings.

Viewing and editing a mailbox

Perform the following steps to view or edit a mailbox:

  1. From the Domain Overview page, click the Manage Mailboxes link under the Actions column for the domain you want to manage mailboxes.
    Screenshot 2025 10 28 at 09.28.59
  2. A list of mailboxes associated with that domain will be listed. It is possible to view the details for each mailbox. Select Details under Mailbox Options.
    Screenshot 2025 10 28 at 11.10.23
  3. Mailbox details can be viewed on a separate page.
    Screenshot 2025 10 30 at 13.09.21
  4. By clicking on Settings, you can change the Anti-virus/SPAM option, change the password, and activate/deactivate the mailbox by switching the on/off button. 
    Screenshot 2025 10 28 at 10.32.46
  5. To change the password, click Update Password. The password fields will expand. You can both create yourself, typing in the password and confirming it, or choose to Generate Random Password, by clicking the corresponding button. When you generate a random password, it will be automatically copied to your clipboard.
    Screenshot 2025 10 30 at 14.15.28
  6. Click the Save button.

Deleting a mailbox

Perform the following steps to delete a mailbox:

  1. From the Hosting Overview page, search for the domain you want to manage and then click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Click the Delete Mailbox icon for the selected email address.
    Screenshot 2025 10 28 at 10.35.34
  3. You will need to confirm the changes. Once confirmed, the mailbox will be deleted.
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Managing an email alias

You can view, edit, and delete your mailbox aliases.

Creating an email alias

  1. From the Hosting Overview page, search for the domain you want to create an alias and then click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Click on the  Aliases link from the left column under the Action panel for a specific account.
    Screenshot 2025 10 28 at 11.10.46
  3. Click on New alias button to create a new one
    Screenshot 2025 10 28 at 11.14.52
  4. You can create aliases for your domain and search the domain via a drop-down, then click on Create alias.Screenshot 2025 10 28 at 11.17.27
  5. Alias will be created and visible on the list.

Creating an email alias for sub domain

  1. From the Hosting Overview page, search for the domain you want to create an alias and then click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Click on the  Aliases link from the left column under the Action panel for a specific account.
    Screenshot 2025 10 28 at 11.10.46
  3. Click on New alias button to create a new one
    Screenshot 2025 10 28 at 11.14.52
  4. You can create aliases for your subdomain by selecting Subdomain then click on Create alias.
    Screenshot 2025 10 30 at 13.44.32
  5. Alias will be created and visible on the list.

Viewing and editing an email alias

  1. From the Hosting Overview page, search for the domain you want to create an alias and then click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Click on the  Aliases link from the left column under the Action panel for a specific account.
    Screenshot 2025 10 28 at 11.10.46
  3. Click the edit icon to edit desired alias.
    Screenshot 2025 10 30 at 13.52.11
  4. You can activate/deactivate the email alias by switching the on/off button.
  5. Click the Save alias button.
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Deleting an email alias

Perform the following steps to delete an email alias:

  1. From the Hosting Overview page, search for the domain you want to manage and click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Click on the  Aliases link under the Mailbox options panel.
    Screenshot 2025 10 28 at 11.10.46
  3. You will need to confirm the changes. Once confirmed, the email alias will be deleted.
    Screenshot 2025 10 28 at 11.20.19

Managing an email forward

You can add, view, edit, and delete your mailbox forwards.

Creating an email forward

  1. From the Hosting Overview page, search for the domain you want to manage and click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Then click the Forwards link under the Mailbox options panel.
    Screenshot 2025 10 28 at 11.11.08
  3. Click on New forward button to create a new one.
    Screenshot 2025 10 28 at 11.24.53
  4. Forward will be created and visible on the list.

Viewing and editing an email forward

  1. From the Hosting Overview page, search for the domain you want to manage and click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Then click the Forwards link under the Mailbox options panel.
    Screenshot 2025 10 28 at 11.11.08
  3. Click on edit icon to activate or deactivate the email forward by switching the toggle and then click save.
    Screenshot 2025 10 28 at 11.27.14

Deleting an email forward

Perform the following steps to delete an email forward:

  1. From the Hosting Overview page, search for the domain you want to manage and click the Manage Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Then click the Forwards link under the Mailbox options panel.
    Screenshot 2025 10 28 at 11.11.08
  3. Click the delete icon to delete forward. You will need to confirm the changes. Once confirmed, the email forward will be deleted.
    Screenshot 2025 10 28 at 11.29.38
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Managing autoresponders

You can view, edit, and add autoresponders.

Adding/Editing an autoresponder

Perform the following steps to add an autoresponder to a domain name:

  1. From the Hosting Overview page, search for the domain you want to manage and then click the Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Under the Mailbox options column, click Autoresponder.
    Screenshot 2025 10 28 at 11.11.41
  3. Add/Edit the Subject and Body for the autoresponder content. Set Active to toggle On.
    Screenshot 2025 10 28 at 11.34.08
  4. Click the Save autoresponder button to apply the changes.

Deleting autoresponders

Perform the following steps to delete an autoresponder:

  1. From the Hosting Overview page, search for the domain you want to manage and then click the Mailboxes link under the Actions column.
    Screenshot 2025 10 28 at 09.28.59
  2. Under the Mailbox options column, click Autoresponder.
    Screenshot 2025 10 28 at 11.11.41
  3. Click on the Delete autoresponder button and confirm the changes. Once confirmed, the email auto-responder will be deleted.
    Screenshot 2025 10 28 at 11.36.09

Adding an email Catch-All

Perform the following steps to add an email catch-all:

  1. From the Hosting Overview page, search for the domain you want to manage and then click the Mailboxes link under the Actions column. 
    Screenshot 2025 10 28 at 09.28.59
  2. Click on Edit catch-all button.
    Screenshot 2025 10 28 at 11.54.31
  3. Now set the catchup email box as per your requirement and click Save button.
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Email Hosting Overview - Manage

Management Articles for Mail Hosting

 

 

Email Hosting Overview - Frequently Asked Questions

  • How many email addresses can I create with my Mail Hosting service?

    With our Mail Hosting service, you can create up to 250 email addresses.

     

     

  • What to do when my emails are delivered to SPAM folders?

    These days it is very important to have an SPF record for your domain. If you don’t have this record the receiving mail server can not verify if you are a legit sender for your domain. For this reason, almost every receiving mail server will mark your email as SPAM. Without a SPF record Gmail and Microsoft will always put your emails in the ‘Junk’ folder. When you have configured a valid SPF record in your DNS records the SPAM score of your email will lower significantly and will reduce the chance that your emails will be delivered in the ‘SPAM’ or ‘Junk’ folder.

    The examples here below are SPF records that you can use if you are using the SMTP server of Leaseweb (smtp.Leaseweb.com)

    Example: smtp.Leaseweb.com

    "v=spf1 +a +mx +a:smtp.Leaseweb.com include:mh-spf.Leaseweb.com ~all"

    For example, if you send email through smtp.Leaseweb.com and through your website

    "v=spf1 +a +mx +a:smtp.Leaseweb.com +a:mailgate.Leaseweb.net include:mh-spf.Leaseweb.com ~all"

     

     

  • Example of how to add the SPF into a TXT record within the Customer Portal

    On the following page, you can find how to create/edit DNS records within our Customer Portal: Creating or editing DNS records

    Once you are at the DNS Records page within the Customer Portal you click the Add button to fill in as follows:

    The following data needs to be filled in:

    Host: Fill in your domain.tld for example ‘Leaseweb-sh.nl‘.
    Type: Select TXT in the dropdown list.
    Content: Inside the content field paste the complete SPF record as listed above.

    if you are using the Leaseweb SMTP and also third-party services like Mandrill and/or Sendgrid you need a customized SPF record. The easiest way to do this is by generating the SPF record at the following website https://www.spfwizard.net/.

     

     

  • Why do I receive SPAM in my inbox?

    One of the reasons of receiving SPAM can be caused by a disabled SPAM filter for your email inbox. You can verify this in the Customer Portal in the section: ‘Domains’ → ‘Email’ → ‘Mailboxes’ → ‘Edit mailboxes’ (Green pencil).

    The main reason why people are receiving a lot of SPAM is because their email address is listed at SPAM lists. Once your email is on those lists it will stay on there forever. Here below are some tips to prevent getting on those SPAM lists.

      • Never put your email address on your website. Email addresses are scrapped automatically by bots on the internet. You should use a contact form with Captcha.

      • Do not use an info@ address.

      • Use aliases for online subscriptions.

      • Never post your email address on public platforms, these websites are also scrapped by bots.

    If you still encounter a lot of SPAM with the SPAM filter enabled please contact our ‘Customer Care’ team from the ‘Customer Portal’. To localize the issue we would like to have the header of the email. The next section in this FAQ describes how to look up the header of the email.

     

     

  • How do I look up the header of my email?

    The headers of an email can be retrieved in different ways. Here below we will describe how to do this with the most common email clients. The preferred way for ‘Customer Care’ is Leaseweb Webmail.

    Leaseweb Webmail

    Login at webmail.Leaseweb.com → select the email → Click More → Click Show source. Copy the complete text in a txt file.

    Apple Mail

    Open the email in Apple Mail → Click View → Message → All Headers. Copy the complete text in a txt file.

    Mozilla Thunderbird

    Open the email in Mozilla Thunderbird → Click View → Click Message Source. Copy the complete text in a txt file.

    Outlook

    Open the email in Outlook → Click File → Properties → Copy the text from the Internet Headers into a txt file.

     

     

  • Why can I send an email but not receive the email?

    Sending email does not require a DNS record so this will always work. For receiving email you need a MX record. Please see the following page for more information about MX Records.

    The MX records for receiving mail at the Leaseweb platform should be as follows:

    mailfilter1.Leaseweb.com 100
    mailfilter2.Leaseweb.com 100
    mailfilter3.Leaseweb.com 100

     

     

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