Errors sending through Runbox

Why won't Runbox let me send mail through my email client?

The most common errors associated with sending mail through an email client are:

• Error: 550 relaying prohibited (or similar)
  Runbox' SMTP server requires that your mail client supports authentication. All you need to do is to check "My outgoing server requires authentication" under Account properties (in Outlook, there are similar options in other clients). Select the option to use the same login data for the SMTP server as for the POP server.
  
  Note: Some older/smaller clients, and the older Opera mail client (version 6), do not support this.
  
  Eudora users on Macintosh computers need to follow the fix described here: http://www.eudora.com/techsupport/kb/2354hq.html

• Error: 550 Administrative prohibition
  You are trying to send a message without SMTP authentication, or the message contains certain disallowed elements that indicate spam or phishing attempts.

• Error: 550 Invalidated From address
  You are trying to send from an address that is not recognized by the Runbox system. You are only allowed to send from addresses that are among your Runbox aliases, virtual domain addresses, or external addresses explicitly validated via the address in question.
  To validate an external address, enter it in the Webmail Preferences for any Webmail folder and click [Save settings]. A confirmation message will be sent to the address, requiring you to click a link in the message to confirm that you own the address. Once validation is complete you can send from that address via Webmail or SMTP.

• Error: Server could not be found, connection failed (or similar)
  Some ISP's restrict outgoing mail sent through them, by prohibiting any third party servers from sending mail on port 25 (default). To circumvent this, you just need to specify in your email client that the port should be 26 for the SMTP server.

• Error: (After sending a number of mails, delivery starts failing)
  If you are a trial user, you may not send more than 50 mails (i.e. to more than 50 recipients total), per day. This no longer applies starting 8 hours after you subscribe, though.

Help references

• Access: Access One of the most powerful features about Runbox Mail Manager is that it can deliver your email to almost any type of email device or client, and Access shows ...
• Aliases: Aliases What is an alias? An alias is an extra address which forwards all mail to your main account, or to another Runbox email address. An alias is useful for giving ...
• EmailDictionary: Email Dictionary Under development: IMAP POP POP3 Wap Previous Next Move Drafts Sent Toggle Read Unread Email Hosting Business Email Secure Email SSL https:// Delete ...
• Eudora: Eudora To set up Eudora with Runbox Mail Manager, follow the step-by-step instructions below. Please note that the setup process and dialog boxes on your computer ...
• Filter: Filter Contents TOC The Filter level in Manager lets you reject email containing viruses, block unwanted senders and sort or reject suspected unsolicited junkmail ...
• HelpResources: Overview of Help Resources Runbox Mail Manager (RMM) offers a wide range of email tools and features, and here you will information and help for all of them. Search ...
• HotmailImport: Import Email from Hotmail Can I import email from Hotmail to another email application? You can import email from Hotmail to other email applications using a Homtmail ...
• IMAP: IMAP IMAP stands for Internet Message Access Protocol, and is an alternative to the POP protocol. It is a method of accessing email that is kept on a (possibly shared ...
• Manager: Manager Manager is the core of the Runbox Mail Manager system, and is where you manage all your email. With Manager you can fetch email from external email accounts ...
• MicrosoftOutlook: Microsoft Outlook To set up Microsoft Outlook with Runbox Mail Manager, follow the step-by-step instructions below. Please note that the setup process and dialog ...
• MicrosoftOutlookExpress: Microsoft Outlook Express To set up Microsoft Outlook Express with Runbox Mail Manager, follow the step-by-step instructions below. Please note that the setup process ...
• Netscape: Netscape To set up Netscape Mail with Runbox Mail Manager, follow the step-by-step instructions below. Please note that the setup process and dialog boxes on your ...
• Overview: Overview Runbox offers a wide range of email tools and features, and here you will find information and help for all of them. You might want to start by browsing ...
• POP: POP Informative video about POP3 A POP client is convenient if you want to download and store your email locally. A POP client is a program for a PC, PDA, or handheld ...
• Pegasus: Pegasus To set up Pegasus with Runbox Mail Manager, follow the step-by-step instructions below. Please note that the setup process and dialog boxes on your computer ...
• Retrieve: Retrieve Retrieve lets you consolidate all of your email in one place. As more and more of us keep multiple email accounts, it is both time-saving and easier to organize ...
• RunboxHelpMenu: Overview Signup Login Webmail Manager Retrieve Filter Access WAP Mobile Web POP IMAP SMTP Address Book Files Chat Account Email Hosting Aliases Sub-Accounts Logout ...
• SMTP: SMTP An email client set up to download incoming email via POP or IMAP also needs to be configured for SMTP (Simple Mail Transfer Protocol) to send outgoing messages ...
• WebHome: Overview Runbox offers a wide range of email tools and features, and here you will find information and help for all of them. You might want to start by browsing ...
• WebStatistics: Aug 2005 68894 3 0 6266 3912 WebHome 2770 2239 Login 2045 1732 IMAP 1720 1716 EmailHosting 1713 1628 Filter 1579 Retrieve 3 Main.GeirThomasAndersen Sep 2005 52823 ...
• Webmail: Webmail TOC Webmail is where you normally read incoming email, organize your messages in folders, and write new email. The Webmail-window is divided in two parts ...

If your question was not answered, please try again, browse Help, or search Help. If your problem still isn't resolved, you may contact Runbox Support at support AT runbox DOT com.