Adding/modifying an external POP3 account for retrieval with LANMailServer

Online help for LANMailServer

Email Server for Local Networks POP3 IMAP4 IMAP with Autoresponder, SMTP Relay Server, Email Distribution Groups, OAuth2 Support

Adding/modifying an external POP3 account for retrieval with LANMailServer

Inbox Tab

Mailbox Type:	Select POP3 as the mailbox type.
Incoming Mail Server	Enter the POP3 server. This information is provided by your provider and may be a designation such as mail.provider.de or an IP address like 139.54.124.45. A list of providers with the settings for POP3 and SMTP servers can be found below this explanation.
Port	In most cases, the port is 110. You should only change this setting if the provider explicitly informs you that a different port must be used.
Server Requires Secure Connection (SSL/StartTLS)	Enable this setting if the server supports or requires an SSL-encrypted connection.
Number of Connection Attempts	Set how often SuperSpamKiller Pro should attempt to connect to the incoming mail server. In most cases, specifying 1 attempt should be sufficient.
Account Name	Enter the account name/username for the account.
Password	Enter a valid password for the email account.
Use APOP if the Server Allows It	Some POP3 servers support APOP for authentication, which transmits login credentials encrypted. Enable this setting for SuperSpamKiller Pro to use APOP for authentication. If unsuccessful, the credentials will be transmitted unencrypted, which is standard for the POP3 protocol. Note: If the POP3 server does not support APOP, retrieving emails may take more time.
POP3 Authentication Basic/Standard	Use "Modern Authentication" OAuth2 instead of BASIC/Standard Authentication for accessing mailboxes or sending emails
Leave Copies of Emails on the Server	Enable this setting to keep emails permanently or for the specified number of days on the external server. With more than approximately 15,000 emails, the retrieval process via POP3 will be significantly slowed down, and a large amount of memory will be required, which could cause the service to crash. Use IMAP4 to keep emails on the server. This is the fastest and most memory-efficient method, and the number of emails in the external mailbox is not limited.