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Finally, maildrop can run in manual mode, like any other interpreter. [4] Maildrop is written in C++. However, it uses resources more efficiently than procmail (written in C) by saving large messages to a temporary file rather than reading them into memory. If the input to maildrop is a file then a temporary file is not used. [5]
Maildir was designed by Daniel J. Bernstein circa 1995, with a major goal of eliminating the need for program code to handle file locking and unlocking through use of the local filesystem. [1] Maildir design reflects the fact that the only operations valid for an email message is that it be created, deleted or have its status changed in some way.
The comparison of mail servers covers mail transfer agents (MTAs), mail delivery agents, and other computer software that provide e-mail services.. Unix-based mail servers are built using a number of components because a Unix-style environment is, by default, a toolbox [1] operating system.
In order to better enforce anti-spam policies, AOL does not disclose the number of recipients or emails that can be sent at one time. If you've received a notification that a limit has been met, you'll need to wait a set amount of time before you can send more emails.
maildrop or courier-maildrop - traditional procmail replacement, part of Courier Mail Server, but can also be used with other mail servers; procmail - old, but still used; bin/mail, the MDA part of Sendmail - Sendmail is one of the oldest email packages
Find out more about why your messages to AOL members keep getting rejected.
LMTP requires a response for each previously successful RCPT command. That is, in case of multiple recipients, after the body of the message has been transmitted, LMTP can still fail for some recipient while succeeding for the others. With this facility, LMTP can fail if a user is over quota without the burden of generating bounce messages.
Mailboxes have a size limit, either determined implicitly by available memory, or after quota definitions for that mailbox or folders thereof. Besides administrative trivia, quota limits help mitigate email bomb attacks. [4] An IMAP extension for quota was standardized in 1997. [5]