Error Replies

[ Service UNIX-Workstations | Service PCs | Sekretariat | IRB | Fakultät IV ]

If you are reading this web page, it is probably because you received a bounce message from cs.tu-berlin.de's mail exchangers telling you that your mail was not accepted. The mail exchangers are administered by Informatik Rechnerbetrieb, Technische Universität Berlin, Germany, referenced in this document as IRB.

The following collection of error reply messages describes the circumstances why a specific error reply message is issued and what kind of solutions you can undertake, to prevent them in future.
The phrase <mailbox> stands for a fully qualified sender or recipient address, and site stands for a fully qualified host name or IP address of the connecting site.

550 <mailbox>... invalid local sender address for site

550 <mailbox>... invalid local sender address: site
This error reply is issued if you connect from a remote site not in the domain cs.tu-berlin.de and your mail user or transfer agent supplies an envelope sender address containing the toplevel domain cs.tu-berlin.de, for example

MAIL FROM: <userpart@cs.tu-berlin.de>

or
MAIL FROM: <userpart@hostname.cs.tu-berlin.de>

Solutions:

Check your mail user agent's configuration

If you haven't a valid account in cs.tu-berlin.de, please obtain a valid email address from your IP provider and use their mail exchangers.

If you have a valid account in cs.tu-berlin.de, and you must use a different IP provider than IRB,

please obtain a valid email address from your secondary IP provider and use their mail exchangers to transfer your email. If you want replies going to your account in cs.tu-berlin.de, specify a Reply-To: Header containing your IRB email address in your outgoing email.

and your mail user agent supports the POP3 extension XMIT, you can use cs.tu-berlin.de's POP3 server for delivering your email.

or connect to a maschine within cs.tu-berlin.de using telnet, rlogin, or slogin and send your email online.

550 Local site administratively blocked.

This error reply is issued when you connect from a site within the IP address range of cs.tu-berlin.de which has not been assigned a valid DNS domain name yet and is therefore administratively blocked by default.
Solutions:
contact IRB personally.

553 Real domain name required

501 Sender domain must exist
These error replies are issued if the envelope sender address references a DNS domain, for which no A or MX record can be found.
Solutions:

Check the configuration of your mail user agent and/or mail transfer agent for typographical errors.

Obtain valid DNS records from your IP- or DNS provider.

553 Domain name required

This error reply is issued if the envelope sender address' domain portion isn't fully qualified.
Solutions:

Configure your mail user agent or mail transfer agent to supply fully qualified envelope sender addresses.

550 Relaying denied

This error reply is issued if an incoming mail from a nonlocal site is addressed to domains, which aren't served by cs.tu-berlin.de's mail exchangers.
Solutions:

Use appropriate mail exchangers other than cs.tu-berlin.de's mail exchangers.

550 Invalid Message-Id

This error reply is issued if the mail header an incoming mail contains an syntactically invalid message id header.
Solution:
Fix your MTA's configuration and supply syntactically correct message-id header. See RFC822 for more information.

550 Invaliad sender address

This error reply is issued if the envelope sender address is invalid or is frequently used by spammers.

[ Seitenanfang | IRB | Fakultät IV | Uli Pralle | Impressum | 10.7.1998 ]

übertragen am 9.2.2010, 21:00