421 Server is busy, try again later.Connection closed by foreign host.

This is caused by the smtp is not able to accept anymore inbound connections.

The first thing to do is to open a connection from your computer to your mail server.

telnet mail.domain.ext 110

You should receive a reply like:

Trying ???.???.???.???…

Connected to mail.domain.ext.

Escape character is ‘^]’.

+OK ready

Then log in:

USER userName

This should give you:

+OK Password required for userName.

Now give your password:

PASS passW0rd

Should yeild:

+OK userName has ? visible messages (? hidden) in ????? octets.

If it doesn’t please see possible problems.

To see a list of your emails awaiting collection use the LIST command, this will also show you the id number of your messages (e.g. 1 or 2 etc.)

To view the contents of an email type RETR + the id number of the message (e.g RETR 1).

To delete a message use DELE + the id number of the message (e.g DELE 1).

To leave your mailbox and close the connection use QUIT

Here are a list of problems I’ve encountered and their fixes

-ERR [AUTH] Password supplied for “userName” is incorrect.

The password supplied was not the one expected by the server, retype the password, failing that find out if you’ve got the correct password.

-ERR [AUTH] PAM authentication failed for user “userName”: Authentication failure (7)

Your mailbox could not be broken down into seperate emails correctly, there may be a remnant of a message left – Ask your ISP to edit the mailbox manually and look for free lines above the headers.

452 4.4.5 Insufficient disk space; try again later

The mailserver cannot write the temporary files needed to allow you to collect your mail – ask your ISP to check disk useage and allocation on the server

-ERR [SYS/TEMP] Unable to copy mail spool file, quota exceeded (122)

The mailserver cannot create a temporary file needed to allow you access to your mailbox as you’ve run out of your space allocation – Try to reduce the amount of disk space you are using on that server (this quota may be shared between your mail, web and userspace), alternatively contact your ISP to increase your quota.

-ERR [IN-USE] /???/???/.userName.pop lock busy! Is another session active? (11)

The mailbox is currently in use by another connection or an old connection has terminated uncleanly – This will deal with itself

Overquota locking file ‘/???/???/???/userName.lock’; lock proceeding anyway

Unable to process From lines (envelopes) in /???/???/???/userName; change recognition mode or check for corrupted mail drop.

The mailbox cannot be split into seperate messages because the pop server cannot recognise distinct boundaries or the boundaries do not include the whole mailbox

You can change the ports for *all email accounts* in Eudora for the POP, IMAP, SMTP, ACAP, or Password Change Port by using the esoteric settings. First exit Eudora. Look in the Eudora directory for the folder “Extrastuff”. In this folder there is a file named “esoteric.epi”. Drag this file into the main Eudora directory. Restart Eudora then go to the Tools menu, Options, Ports, and change the ports here as needed.

If you do not know where your Eudora directory is and are currently running Eudora 6.2 or newer, you can find out by going to the Help, About Eudora menu.

To find out where you have Eudora installed for versions older than 6.2 you will have to search for the directory using Windows Search. Go to Start, Search, All files and Folders. In the box labeled “All or part of the file name” type eudora.ini. Click on Search now. When the file is located look at the modified date. The eudora.ini file with the most recent date will reveal the location of your Eudora directory. This eudora.ini file’s modified date is updated each time you exit Eudora. The file location will be listed under the “In Folder” category in the search results window.

OR

You may have a need to change ports for one or more specific email personalities in Eudora. You can do so by adding the desired setting under the appropriate ‘[Persona]‘ section. For example, To change the POP3 port for a personality called ‘foo’ to 10110, you would edit the Eudora.ini and look for a section called:

[persona-foo]

Under that section you would enter:

PopPort=10110

The settings for the 3 main services are:

PopPort=

ImapPort=

SMTPPort=

SSLPopAlternatePort=

SSLImapAlternatePort=

SSLSMTPAlternatePort=

It is not recommended you make any of the above changes unless specifically instructed by your Internet Service Provider or Email Provider. Altering ports in Eudora could inhibit your ability to send and receive email.

211 System status, or system help reply
214 Help message
220 Service ready
221 Service closing transmission channel
250 Requested mail action okay, completed
251 User not local; will forward to
354 Start mail input; end with .
421 Service not available, closing transmission channel
450 Requested mail action not taken: mailbox unavailable
451 Requested action aborted: local error in processing
452 Requested action not taken: insufficient system storage
500 Syntax error, command unrecognized
501 Syntax error in parameters or arguments
502 Command not implemented
503 Bad sequence of commands
504 Command parameter not implemented
550 Requested action not taken: mailbox unavailable [E.g., mailbox not found, no access]
551 User not local; please try
552 Requested mail action aborted: exceeded storage allocation
553 Requested action not taken: mailbox name not allowed [E.g., mailbox syntax incorrect]
554 Transaction failed