No X-UIDL header found

The following mailman methods use the X-UIDL email header as the means to identify the email to be downloaded or deleted from a POP3 server: GetFullEmail DeleteEmail DeleteBundle If no X-UIDL header is found within the email, then it is not possible to determine the sequence number of the email …

POP3 SSH Tunneling (Port Forwarding)

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-ERR Mailbox Locked

If you see this error when trying to login to a POP3 server, it most likely means that the server is only allowing a single connection (i.e. session) at a time for each mailbox, and than another user already has mailbox open.  It could also mean that the POP3 administrator …

No messages in POP3 mailbox?

Question: I am reading my POP3 mailbox by calling mailman.CopyMail. It returns a bundle object, but the bundle.MessageCount = 0. I know there are emails in the mailbox. What happened? Answer: The most common mistake is that you’re looking at your email using a program such as Outlook and your …

UIDL Max Size? (for POP3)

Question: I’m trying to find out the maximum size of the POP3 UIDL. I’ve found various POP3 specs, but they dont list field sizes. Do you know the max size or can you give me any links to this info? Answer: (from RFC 1939) The unique-id of a message is …