SMTP Status Codes and Error Messages from Error 513
SMTP status code – 513 – Address type is incorrect (most mail servers) or Relaying denied or Authentication required (a small percentage of mail servers)
(also called SMTP Error 5.1.3)
SMTP Error 513 : This status code (from the sender’s
mail server) is usually symptomatic, in an Exchange +
Outlook environment, of the user’s Outlook Contacts
having been imported from another system or PST and
where some of the addresses are not defined correctly.
Or, in any environment it is simply that the end-user simply
did enter the email address completely wrongly, such as
copying it from a website and not replacing “at” with “@”,
e.g. : John.DoeatUCLA.edu (which should have been
John.Doe@UCLA.edu), or John.Doe@UCLA.edu” (“,
quotes, is not allowed in email addresses and is often
included in error as a result of copying and pasting an
email from somewhere).
The user should check all the recipient addresses in the
email, including those that were inserted from Contacts.
Note : the SMTP reply code 5.1.3 is often a secondary
reply code. Some mail servers, for example, might reply
“SMTP error 501 5.1.3 Invalid address”, or “SMTP error
553 5.1.3 User address required !”, or “SMTP error 501
5.1.3 Bad recipient address syntax”, or “SMTP error 513
Relaying Denied – Can not send e-mails to some
addresses”, or this excellently informational Exchange
Server 2007 error (the whole error message is in green
”SMTP error 550 5.1.3 STOREDRV.Submit; invalid
Delivery has failed to these recipients or distribution lists:
The format of the recipient’s e-mail address isn’t valid. A
valid address looks like this: firstname.lastname@example.org.
Microsoft Exchange will not try to redeliver this message
for you. Please check the e-mail address and try sending
the message again, or provide the following diagnostic text
to your system administrator.
5.1.3: The format of the recipient e-mail address is not
valid. Valid SMTP e-mail addresses can contain only
letters, numbers, hyphens, periods, and only one @
symbol. Troubleshooting: Verify that the SMTP address of
the recipient is formatted correctly and resend the
SMTP Error 513 is also used by a small percentage of
mail servers to indicate a completely different error, namely
that you need to authenticate to the mail server before
being able to send your message (SMTP authentication).
A typical error message might be : “SMTP error 553
Authentication is required to send mail as
In such cases you simply need to configure your mail
server, or your email program to send emails with SMTP
Above are list of SMTP Errors Codes and Status Codes along with Error and Warning messages from Error 513 received while performing certain operation against mail server applications or related products.
What are SMTP Error Messages?
Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (e-mail) transmission. SMTP protocol is used for sending e-mail messages between servers. Most e-mail systems that send mail over the Internet use SMTP to send messages from one server to another; the messages can then be retrieved with an e-mail client using either POP or IMAP.
In general, each SMTP error contains the following information:
• The SMTP Status Code or SMTP Error Codes or SMTP Reply Codes
• The message text. This text is usually returned with the Error code. Some messages employ word substitution, where the word substituted represents the system-replacement of a term more specific to the occurrence.
• An explanation of how the error may have occurred.
Hope this was helpful.
Information about SMTP Error Codes or Status Codes and Error Messages on Windows, Linux Operating Systems.