How to Block and Unblock Senders in Your Zibster Mailbox
Overview
Your Zibster Mailbox includes a Blocklist that helps prevent unwanted email from reaching your mailbox. You can block a specific email address, an entire domain, or an IP address.
Blocklist settings are specific to the Zibster Mailbox you are logged into. If you have more than one Zibster Mailbox, you must manage the Blocklist separately for each mailbox.
This guide explains how to add an email address, domain, or IP address to your Blocklist and how to remove an entry when you want to allow email from it again
Prerequisites
Before you begin:
- You must have an active Zibster Mailbox.
- You will need the login credentials for the mailbox you want to manage.
- These instructions apply to the Zibster Mailbox webmail interface. Blocking a sender through a third-party email application may use different settings.
When to Use the Block List
You can use the Blocklist when you:
- Receive repeated unwanted messages from the same email address.
- Want to prevent messages from an entire domain.
- Need to block messages associated with a specific IP address.
For most situations, blocking an individual email address is the most precise option.
Blocking an entire domain can prevent messages from every email address using that domain. For example, blocking example.com can affect messages from name@example.com, sales@example.com, and other addresses using that domain.
Use IP address blocking carefully. An IP address may be shared by multiple senders or email services, so blocking one can affect more email than you intend.
STEP ONE
Log in to your Zibster Mailbox at https://mailbox.zibster.com.
Make sure you are logged into the mailbox where you want to manage blocked senders. Blocklist settings apply only to the individual mailbox you are currently using.
STEP TWO
Click the menu icon in the top-right corner of your mailbox, then click SETTINGS.
STEP THREE
Click SPAM SETTINGS to open the spam controls for your mailbox.
STEP FOUR
Click the BLOCKLIST tab.
You can block an individual email address, an entire domain, or an IP address. Choose the type of entry based on what you want to prevent from reaching this mailbox.
STEP FIVE
Type or paste the email address, domain, or IP address into the appropriate field.
For an individual sender, enter the complete email address, such as name@example.com.
To block an entire domain, enter the domain name, such as example.com.
Review the entry carefully, then click ADD.
FINAL STEP
Confirm that the email address, domain, or IP address appears in your Blocklist, then click SAVE to apply your changes.
Future messages that match the Blocklist entry will be blocked from delivery to this Zibster Mailbox.
How to Remove an Email Address, Domain, or IP Address from Your Blocklist
You can remove an entry from your Blocklist when you no longer want it blocked. Removing an entry affects only the Zibster Mailbox you are currently logged into.
STEP ONE
Log in to your Zibster Mailbox and click the menu icon in the top-right corner.
Click SETTINGS, then click SPAM SETTINGS.
STEP TWO
Click the BLOCKLIST tab to view the email addresses, domains, and IP addresses currently blocked for this mailbox.
STEP THREE
Locate the entry you want to remove and click the trash icon or removal option displayed next to the email address, domain, or IP address.
FINAL STEP
Click SAVE to apply your changes.
The entry will no longer appear in your Blocklist. Future messages matching that entry will no longer be blocked by the Blocklist, although normal spam filtering and other mailbox settings may still affect how incoming messages are handled.
Additional Options and Helpful Notes
- Blocklist settings apply only to the individual Zibster Mailbox you are logged into.
- If you have multiple Zibster Mailboxes, you must manage the Blocklist separately for each mailbox.
- Blocking an individual email address applies only to the specific address you enter.
- Blocking a domain can prevent email from all addresses that use that domain.
- An IP address may be shared by multiple senders or email services. Use IP address blocking carefully.
- A sender using another email address, domain, or sending server may not match an existing Blocklist entry.
- Removing an entry from the Blocklist does not guarantee that future messages will reach your Inbox. Normal spam filtering and other mailbox settings still apply.
- Always click SAVE after adding or removing an entry.
Troubleshooting and FAQs
Does blocking a sender in one Zibster Mailbox block them in all of my mailboxes?
No. The Blocklist is mailbox-specific. An entry added to one Zibster Mailbox does not automatically apply to your other mailboxes.
If you want to block the same sender in multiple Zibster Mailboxes, log in to each mailbox and add the Blocklist entry separately.
Should I block an email address, domain, or IP address?
For most unwanted messages, start by blocking the individual email address. This gives you the most precise control.
Block a domain when you want to prevent messages from all email addresses using that domain. Use IP address blocking carefully because an IP address can be shared by multiple senders or email services.
Why am I still receiving messages after blocking an email address?
Confirm that the email address is entered correctly, appears in your Blocklist, and that you clicked SAVE after adding it.
Some senders use multiple email addresses, domains, or mail servers. A message sent from a different address or source may not match the entry you previously blocked.
Can I unblock an email address, domain, or IP address later?
Yes. Return to SETTINGS, click SPAM SETTINGS, and open the BLOCKLIST tab. Remove the entry and click SAVE.
After you remove it, the Blocklist will no longer prevent messages matching that entry from reaching your mailbox.
Why am I still not receiving email after removing an entry from my Blocklist?
Removing an entry means it is no longer being blocked by your Blocklist. Normal spam filtering and other mailbox settings may still affect incoming messages.
If you continue having trouble receiving expected email, contact Zibster Support for assistance.
Need Help?
Zibster Support Hours: Monday–Friday, 9am–6pm EST
Phone: 844.353.3412
Channels: Phone, Live Chat, Support Ticket
