Articles
550 Access denied - Invalid HELO name
Email & Webmail | Updated January 2026 The "550 Access denied - Invalid HELO name" error means the mail server is rejecting an incoming or...
550-not permitted to relay through this server
Email & Webmail | Updated January 2026 The "550 not permitted to relay" error means the mail server is rejecting your outgoing email because it...
An error has occurred
Email & Webmail | Updated January 2026 The generic "An error has occurred" message in webmail or cPanel is frustrating because it gives you...
Are the master mail account and system account password the same?
Email & Webmail | Updated January 2026 Yes, on Ultra Web Hosting your cPanel account password and your "master" or "system" email account...
Can I get webmail running on port 80?
Email & Webmail | Updated January 2026 Webmail on Ultra Web Hosting runs on port 2096 (HTTPS) by default. If your network blocks non-standard...
Cannot write to cache directory /tmp/horde
Email and Webmail | Updated September 2026 The "Cannot write to cache directory /tmp/horde" message comes from the Horde webmail client. Horde is...
Common Outlook Email Errors
Email & Webmail | Updated September 2026 Microsoft Outlook gives specific error codes when something goes wrong with your email connection....
Common Thunderbird Email Errors
Email & Webmail | Updated August 2026 Mozilla Thunderbird is a solid free email client, and we see a good number of Ultra Web Hosting customers...
cPanel and Outlook Phone App Results in Unable to Log In - Secure Connection Unavailable
Email & Webmail | Updated March 2026 If the Outlook mobile app (iOS or Android) cannot connect to your hosting email and shows "Unable to Log...
DKIM: DomainKeys Identified Mail
Email and Webmail | Updated March 2026 DKIM (DomainKeys Identified Mail) adds a digital signature to every email you send, allowing the...
DMARC: Domain-based Message Authentication
Email and Webmail | Updated March 2026 DMARC (Domain-based Message Authentication, Reporting, and Conformance) is the policy layer that ties SPF...
Do you support IMAP?
Email & Webmail | Updated January 2026 Yes, all Ultra Web Hosting plans include full IMAP support. IMAP is the recommended email protocol for...
Does email on the server count towards my allotted space?
Email & Webmail | Updated January 2026 Yes, email stored on the server counts towards your hosting account's total disk space. This includes...
Domain has exceeded the max defers and failures per hour
Email and Webmail | Updated January 2026 If you see the error "Domain has exceeded the max defers and failures per hour," it means your hosting...
Email Firewall Block: Too Many POP3 or IMAP Logins
Email and Webmail | Updated August 2026 If your IP was blocked by the server firewall with a message about POP3 or IMAP logins exceeding an hourly...
Email Troubleshooting Guide
Email & Webmail | Updated August 2026 Email problems are the most common support request we handle at Ultra Web Hosting. This guide walks you...
Emails Bouncing Back
Email & Webmail | Updated March 2026 When an email bounces, you receive a delivery failure notification (sometimes called a Non-Delivery Report...
Error 503 Valid RCPT Command Must Precede DATA
Email & Webmail | Updated March 2026 The error "503 valid RCPT command must precede DATA" means the mail server rejected an outgoing email...
Fixing Outlook SSL Certificate Warnings
Email & Webmail | Updated August 2026 If Outlook shows a certificate warning like "The name on the security certificate is invalid" or "The...
Folders in Roundcube Are Missing
Email & Webmail | Updated March 2026 If you log into Roundcube Webmail and your Sent, Drafts, Trash, or other folders are missing, it's usually...
Gmail Send Mail As Error: 535 Incorrect Authentication Data
Email and Webmail | Updated September 2026 If Gmail bounces your message with "535 Incorrect authentication data" and a CustomFromDenied help link,...
Greatly Reduce SPAM
Email & Webmail | Updated January 2026 Spam is an unavoidable part of running email, but you can dramatically reduce how much of it reaches...
How can I create email aliases?
Email & Webmail | Updated January 2026 Email aliases let you create additional email addresses that deliver to an existing mailbox without...
How can I report someone that is spamming me?
Email & Webmail | Updated January 2026 If you are receiving spam or someone is using your domain to send spam, here is what you can do about it...
How do I access webmail?
Email | Updated January 2026 Webmail lets you check your email from any web browser without installing an app. Ultra Web Hosting includes three...
How do I block emails containing zip attachments
Email & Webmail | Updated January 2026 If you are receiving spam or phishing emails with .zip attachments, you can create an email filter in...
How Do I Change My MX Records
Email & Webmail | Updated August 2026 MX records control where email for your domain is delivered. Changing MX records is free and self-service...
How do I make Outlook leave a copy of my messages on the server?
Email & Webmail | Updated March 2026 If you use POP3 in Outlook, messages are downloaded to your computer and removed from the server by...
How may I create a mailing list?
Email and Webmail | Updated January 2026 Ultra Web Hosting supports mailing lists through the Mailman list manager in cPanel. A mailing list lets...
How to Create Email Accounts and Aliases
Email & Webmail | Updated March 2026 Yes. You can create unlimited email accounts and aliases for any domain hosted on your Ultra Web Hosting...
How to Migrate Your Email to a New Host
Email and Webmail | Updated July 2026 Moving your email to a new host means copying the messages sitting on the old mail server over to the new...
How to Set Up an Email Autoresponder in cPanel
Email and Webmail | Updated July 2026 An autoresponder sends an automatic canned reply to anyone who emails a given address, so a message like "I...
How to Set Up Email Forwarders and Catch-All Addresses
Email and Webmail | Updated July 2026 Email forwarders are one of the most useful and most misunderstood features on your Ultra Web Hosting...
How to Set Up Email in Microsoft Outlook
Email & Webmail | Updated August 2026 Setting up your Ultra Web Hosting email in Microsoft Outlook takes about 5 minutes. This guide covers...
How to Set Up Email on Android
Email & Webmail | Updated August 2026 Setting up your Ultra Web Hosting email on an Android phone or tablet takes about 3 minutes. This guide...
How to Set Up Email on Your iPhone or iPad
Email & Webmail | Updated August 2026 Setting up your Ultra Web Hosting email on an iPhone or iPad takes about 3 minutes. This guide covers the...
How to Set Up Google Workspace Email With Your Domain
Email & Webmail | Updated August 2026 Google Workspace (formerly G Suite) lets you use Gmail's interface with your own domain name. Your...
How to Set Up Microsoft 365 Email With Your Domain
Email and Webmail | Updated July 2026 Microsoft 365 (formerly Office 365) lets you run your email on Microsoft's Exchange Online servers while...
How to use Gmail for email with a hosting account with us
Email & Webmail | Updated January 2026 You can use Gmail to send and receive email for your hosting domain (like [email protected]) without...
Importing and Exporting Email in Horde
Email | Updated January 2026 Horde webmail includes import and export features for moving email between accounts, backing up messages, and...
IP Address Has Changed Error in Webmail
Email & Webmail | Updated March 2026 The "IP Address Has Changed" error in Webmail is a session security feature. It appears when your IP...
Is there a way to log directly into one webmail application?
Email & Webmail | Updated January 2026 Yes, you can log directly into a specific webmail application (Roundcube or Horde) without going through...
Mailbox shows email but I do not see any
Email & Webmail | Updated January 2026 If your email client shows your mailbox with a message count but the messages themselves are invisible...
Outlook: Error 0x800CCC0D-E
Email & Webmail | Updated January 2026 Outlook error codes 0x800CCC0D and 0x800CCC0E mean the email client cannot find or connect to the mail...
Outlook: Your POP3 Server Has Not Responded or TCP-IP Error
Email and Webmail | Updated September 2026 "Your POP3 server has not responded" and generic "TCP/IP error" messages mean Outlook opened a...
POP3 vs IMAP - Choosing the Right Email Protocol
Email & Webmail | Updated March 2026 POP3 (Post Office Protocol version 3) is one of two ways to receive email from a mail server. The other is...
Receiving reported error (0x80042108)
Email & Webmail | Updated March 2026 The Outlook error 0x80042108 means "Outlook is unable to connect to the incoming (POP3 or IMAP) mail...
Sent Emails Not Showing in Sent Folder
Email & Webmail | Updated March 2026 If you send an email from your desktop or phone but it doesn't appear in your Sent folder (in Webmail or...
Server does not support TSL Connections
Email & Webmail | Updated March 2026 The "Server does not support TLS connections" error in email clients means the encryption settings do not...
Server Error 0x800CCC90, Error Number 0x900CCC92
Email & Webmail | Updated January 2026 Error codes 0x800CCC90 and 0x800CCC92 in Microsoft Outlook indicate that the email client cannot log...
SPF: Sender Policy Framework
Email and Webmail | Updated March 2026 SPF (Sender Policy Framework) is a DNS record that tells receiving mail servers which servers are authorized...
Unable to log into Webmail
Email & Webmail | Updated January 2026 If you cannot log into webmail at my.ultrawebhosting.com:2096, the most likely cause is a wrong...
Understanding Email Authentication: SPF, DKIM, and DMARC
Email and Webmail | Updated January 2026 If your emails are landing in spam folders, or if someone is sending fake emails that look like they come...
Unroutable mail domain
Email & Webmail | Updated January 2026 The "Unroutable mail domain" error means the mail server cannot determine where to deliver email for a...
Webmail Access Denied
Email & Webmail | Updated March 2026 Getting "access denied" or a blank page when trying to log into Webmail is almost always caused by a...
What are my mail server names?
Email & Webmail | Updated January 2026 When setting up email in Outlook, Thunderbird, your phone, or any other email client, you need to know...
What does POP3 stand for?
Email & Webmail | Updated January 2026 POP3 stands for Post Office Protocol version 3. It is one of two main protocols your email client uses...
What is a email mailing list?
Email & Webmail | Updated January 2026 A mailing list lets you send one email to a single address and have it delivered to all subscribers on...
What is email forwarding?
Email & Webmail | Updated January 2026 Email forwarding automatically sends a copy of incoming messages from one address to another. You can...
What is my master mail account?
Email & Webmail | Updated January 2026 Your master mail account is the default email account that is automatically created with your cPanel...
What is the path to sendmail?
Email & Webmail | Updated January 2026 The path to sendmail on Ultra Web Hosting servers is /usr/sbin/sendmail. This is the standard location...
What URL should my users go to to get their webmail - I don't want them to log in to the control panel just to get their email
Email & Webmail | Updated January 2026 You can access webmail for your hosting account from any browser without installing email software....
When I log into webmail I receive a 404 error
Email & Webmail | Updated January 2026 If you receive a 404 error when trying to access webmail, the URL you are using is likely incorrect or...
Why can I not connect to the mail server?
Email & Webmail | Updated January 2026 If your email client cannot connect to the mail server, the issue is usually one of four things: wrong...
Why does my form not send email?
Email & Webmail | Updated January 2026 Contact forms are one of the most common features on websites, and "my form is not sending email" is one...
Why Is My Email Going to Spam and How to Fix It
Email and Webmail | Updated July 2026 When mail you send from your Ultra Web Hosting domain keeps landing in recipients' spam folders, it is almost...
