Toggle navigation Home Store Browse All ----- Webhosting Domains Quotation (Webdesign Services) eMail Hosting SEO- Search Engine Optimisation GRAPHIC DESIGN Dedicated/ VPS Webhosting BULKSMS Mobi Applications Website Maintenance Register a New Domain Transfer Domains to Us Announcements Knowledgebase Network Status Affiliates Contact Us Account Login Register ----- Forgot Password? Categories 9 CGI Scripts 34 Databases 28 Dedicated Servers 1 DNS 15 Domains 5 eCommerce 79 eMails 27 FTP 1 General Issues 1 MX Records 1 Nameservers 28 Other 104 Scripting 254 Web Hosting Control Panel 9 Web Resources 8 Web Stats & Logs 11 Web Tools 8 Website Help and Diagnostics 4 Windows Hosting Categories CGI Scripts (9) Databases (34) Dedicated Servers (28) DNS (1) Domains (15) eCommerce (5) eMails (79) FTP (27) General Issues (1) MX Records (1) Nameservers (1) Other (28) Scripting (104) Web Hosting Control Panel (254) Web Resources (9) Web Stats & Logs (8) Web Tools (11) Website Help and Diagnostics (8) Windows Hosting (4) [EML2.17] Why do I get a 550 Relay Not Permitted error message when sending mail? In order to send mail through the mail servers, the email client program must be configured to use SMTP Authentication. Common email clients include a tickbox in the account configuration with the label "This server requires authentication". That box should be ticked, otherwise look for a setting on the outgoing server settings that refers to authentication and set it to use the same username and password for the incoming server. This error can also occur with some ISPs which block port 25 for SMTP. AOL is known to be such an ISP. If this happens, setting SMTP to port 587 will allow you to send email through us with AOL, for other ISPs we suggest contacting their technical support for advice or using their own outgoing SMTP server they would have provided you with. You may also see this error shortly after a DNS change has been actioned. If a domain's DNS cache has not yet updated to reflect recent changes, you may face 550 errors. Waiting will resolve the matter in this instance. Was this answer helpful? Yes No Print this Article Also Read [EML1.02] How do I create a new mailbox/ email account Log into your hosting control panel here: http://cpanel.pfphosts.net with the login details... [EML2.02] I am unable to connect to the mail server. Outlook is showing error 0x80042108? This is a common error code from Outlook which can be caused by the following : • There are... [EML3.13] How do I set up an Exchange mailbox in Entourage? With the advent of Exchange 2010, Microsoft dropped WebDAV support, switching to Exchange... [EML2.09] I am sending an email to an external user with a large file attachment and they can't receive it. Why is that? Several ISP's and hosting companies place restrictions on the size of individual emails that can... [EML1.04] How to setup an eMail Filter Logs Email Filter Logs allows you to send logs of your (junk mail) email filter activity, once a... Support My Support Tickets Announcements Knowledgebase Downloads Network Status Open Ticket × Close Title Loading...