sendmail on FreeBSD


 
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Operating Systems BSD sendmail on FreeBSD
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Old 01-24-2006
sendmail on FreeBSD

Dear all,

I have been using freebsd 5.4 for 2 months using fetchmail to retrieve mails and using sendmail to send mails.
I have no problem with fetchmail to retrieve mails from pop3 server.
And most of the time I have no problem with sendmail.
But recently I found that I could not send mails to freebsd-stable@freebsd.org.
Actually sendmail is a mail server (not a client), which sends mails directly from my host to other mail servers without relaying and SMTP is a server-to-server protocol, which requires reverse DNS to gain full functionality.
Correct me, if I'm wrong.
I found that rDNS was not supported to the given IP address and PTR record was not found (I don't know so much about them).
So my sendmail can not work with some destination servers.
How to config rDNS? Shall I call ISP?
Does relay help me solve this problem? And how to config it?

More info: I'm on dual stack; dynamic IPv4 and static IPv6 (6bone).
Somebody who experienced this problem please point me out.

Thanks in advance,
Jaguar
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DOVEADM-MOUNT(1)						      Dovecot							  DOVEADM-MOUNT(1)

NAME
doveadm-mount - Manage the list of mountpoints where mails are stored SYNOPSIS
doveadm [-Dv] [-f formatter] mount command [arguments] DESCRIPTION
The doveadm mount commands can be used to manage the list of mountpoints where mails are stored. This is used mainly for better error han- dling when a mountpoint isn't mounted for some reason: * If a mail directory doesn't exist, it's autocreated. If the user's mails aren't mounted and filesystem permissions still allow the autocreation, the user will see an empty mailbox and later will have to redownload all mails. If the mountpoint is known to be unmounted, Dovecot will simply fail opening any mailboxes. * If dbox alternate storage isn't mounted and a mail in it is attempted to be accessed, Dovecot normally rebuilds the indexes and notices that all the mails in alt storage are expunged. When the alt storage is mounted back and even if index is again rebuilt, the mails won't necessarily become visible anymore for IMAP clients. If the mountpoint is known to be unmounted, Dovecot won't rebuild indexes and lose the mails. Dovecot automatically adds mountpoints to this list at startup. If you don't want some of the mountpoints added, you can add a wildcard ignore for it. OPTIONS
Global doveadm(1) options: -D Enables verbosity and debug messages. -f formatter Specifies the formatter for formatting the output. Supported formatters are: flow prints each line with key=value pairs. pager prints each key: value pair on its own line and separates records with form feed character (^L). tab prints a table header followed by tab separated value lines. table prints a table header followed by adjusted value lines. -v Enables verbosity, including progress counter. ARGUMENTS
path The directory name of a mountpoint state The state of a mountpoint. Either online or ignore. COMMANDS
mount add doveadm mount add [path [state]] If this command is run without any parameters, doveadm detects all missing mountpoints and adds them (the same way as when Dovecot does at startup). When a mountpoint path is given, it's added as a mountpoint. The state can currently be either "online" (default) or "ignore". The ignore state is mainly useful with path wildcards to add mountpoints that you never want Dovecot to automatically add, such as: doveadm mount add '/mnt/*' ignore mount list doveadm [-Dv ] [-f formatter] mount list This command lists the mountpoints known to Dovecot and their state. mount remove doveadm mount remove path This command removes the specified path from the mountpoint list. REPORTING BUGS
Report bugs, including doveconf -n output, to the Dovecot Mailing List <dovecot@dovecot.org>. Information about reporting bugs is avail- able at: http://dovecot.org/bugreport.html SEE ALSO
doveadm(1) Dovecot v2.1 2012-02-16 DOVEADM-MOUNT(1)