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) [EML2.08] I'm getting a 451 Message temporarily deferred message when sending to Yahoo or BT - What does this mean? Yahoo have extremely strict criteria for accepting email and often defer e-mail if they think that it might be spam or if they are busy - they call this 'de-prioritising email'. Unfortunately they have a very poor system that often defers perfectly acceptable email. Yahoo also run the e-mail system for other companies like BT email so you may get the message sending to BT email addresses too. It is widely known in the industry that Yahoo have this poor system and we always recommend that you do not use Yahoo for email purposes because of the amount of email that they block or defer. Please note that there is nothing that we or any other web hosting company can do about this. Our mail servers will keep trying to deliver your message and Yahoo should eventually accept it. Was this answer helpful? Yes No Print this Article Also Read [EML4.05] WebMail - Compose/Send Email To send email via Webmail:- Log in to your account. Click New > New Email Fill in the message... [EML4.22] How to sync your Sent, Draft and Deleted items IMAP folders on your iPhone or iPad This article only applies for mailboxes setup as IMAP mailboxes on your iPhone or iPad. If you... [EML4.24] Why have we seen an increase in the amount of spam / junk email we're getting? Spam volumes can change from day to day by quite a large amount. If you're suddenly seeing an... [EML2.03] Ive changed the MX record for my domain. Why am I now unable to receive email? MX Records change where email is delivered for a domain. pfpHosts.com offer the flexibility to... [EML2.11] My E-mails are getting delayed - what is causing this? If emails are arriving into your mailbox late, then please ensure that it's not full - if it is,... Support My Support Tickets Announcements Knowledgebase Downloads Network Status Open Ticket × Close Title Loading...