Re: Email Server Backup Strategy
On Sun, Feb 9, 2020, 23:38 Andrew McGlashan < andrew.mcglas...@affinityvision.com.au> wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Hi, > > On 10/2/20 4:59 am, Francis Augusto Medeiros-Logeay wrote: > > What I do: > > > > 1 - I ran a maildirlock command to my mail folder 2 - I then rsync > > the folder where my maildirs are, as well as the indexes, to a > > remote location > > If rsync is not fast... then how about doing a snapshot and then rsync > off the snapshot? (I do rsync over lvm snapshots to back up file > systems cleanly) and, btw, perform file system dumps [ufsdump / > ufsrestore like, but dump and restore on Linux] of *non-mounted* > backup file systems fwiw. > > I have other rsyncs that happen via rsnapshot during the day, I don't > worry about snapshotting them though, but I probably should > > > 3 - I tar.gz the daily backup 4 - I kill the maildirlock process > > > > I also use replication of my server so that I keep getting mail > > when my main server isn't available. > > You mean backup mx? > > > As for postfix, I backup the database once a week, since it doesn't > > get changed that often. > > > > Hope that helps! > > > > Best, > > > > Francis > > > > > > > > > > On 09.02.2020 18:26, Esteban L wrote: > >> Hello, > >> > >> Was thinking it would be wise to backup my server, in case > >> anything "bad" ever happened, so that I could quickly get up to > >> speed. > >> > >> 1. clone the whole drive -- which might be the best to ensure I > >> keep the whole system working. > >> > >> 2. But, what about, if I just wanted to backup my Email server > >> components? Postfix - which I think is just config files, and > >> Dovecot - I think there is a doveadm backup for doing such > >> things. > >> > >> What do you guys do, recommend for backups?? > >> > >> Thanks > > Cheers > > - -- > Andrew McGlashan > > -BEGIN PGP SIGNATURE- > > iHUEAREIAB0WIQTJAoMHtC6YydLfjUOoFmvLt+/i+wUCXkBKkAAKCRCoFmvLt+/i > +811AQCmzZtw7SLsKHi9bNybOtsuQwT/qqZ9GppCXJWAtRYzkQD+M3ZlXR6v3g9U > 5Px4Aayix3mQyil0q7MZIYpNyrBWEjw= > =YOGn > -END PGP SIGNATURE- > What do you guys do to backup mdbox mails with SiS enabled? DP >
Re: Email Server Backup Strategy
Esteban L wrote on Sun, 09 Feb 2020 18:26 +0100: > 2. But, what about, if I just wanted to backup my Email server > components? Postfix - which I think is just config files, and Dovecot - > I think there is a doveadm backup for doing such things. For postfix you should also back up the mail queue (e.g., messages that couldn't be delivered the first time and await further delivery attempts). See `postconf data_directory` and/or `postconf queue_directory`.
How to configure mail-filter plugin
I config mail-filter plugin like https://wiki2.dovecot.org/Plugins/MailFilter
describe?? but error occurred
mail-filter plugin config in dovecot.conf:
mail_plugins = mail_filter
plugin {
mail_filter = mail-filter %u # %u = username given to the script as first
mail_filter_out = mail-filter-out %u
}
service mail-filter {
executable = script /usr/local/bin/mail-filter.sh
user = vmail
group = vmail
unix_listener mail-filter {
mode = 0666
user = vmail
group = vmail
}
}
service mail-filter-out {
executable = script /usr/local/bin/mail-filter-out.sh
user = vmail
group = vmail
unix_listener mail-filter-out {
mode = 0666
user = vmail
group = vmail
}
}
vim /usr/local/bin/mail-filter.sh
touch /tmp/testfile
cat > /tmp/tempfile
cat /tmp/tempfile
vim /usr/local/bin/mail-filter-out.sh
cat > /tmp/tempfile
cat /tmp/tempfile
then "dovecot-lda -f q...@a.com -d q...@a.com < test.eml"
Error log:
Feb 10 10:00:21 lda(q...@a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Debug:
Namespace : Using permissions from /home/a.com/q1: mode=0700 gid=default
Feb 10 10:00:21 lda(q...@a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Panic: file
ostream.c: line 201 (o_stream_flush): assertion failed: (stream->stream_errno
!= 0)
Feb 10 10:00:21 lda(q...@a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Error: Raw
backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42)
[0x7f049f4ef582] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e)
[0x7f049f4ef68e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe4b6e)
[0x7f049f4f9b6e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe4bb1)
[0x7f049f4f9bb1] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0)
[0x7f049f4565e8] -> /usr/lib64/dovecot/libdovecot.so.0(+0x10bc47)
[0x7f049f520c47] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(dbox_save_end+0x35) [0x7f049f8262f5]
-> /usr/lib64/dovecot/libdovecot-storage.so.0(mdbox_save_finish+0x39)
[0x7f049f81af99] -> /usr/lib64/dovecot/libdovecot-lda.so.0(+0x3fbe)
[0x7f049fb0efbe] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_save_finish+0x73)
[0x7f049f801493] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_storage_copy+0xc9)
[0x7f049f7f38e9] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mdbox_copy+0x46)
[0x7f049f81b816] -> /usr/lib64/dovecot/libdovecot-lda.so.0(+0x3daa)
[0x7f049fb0edaa] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x4e87c)
[0x7f049f80187c] ->
/usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1d7)
[0x7f049fb103e7] -> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver+0x2fe)
[0x7f049fb10bfe] -> /usr/libexec/dovecot/dovecot-lda(main+0x615)
[0x55f636880045] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f049f073c05]
-> /usr/libexec/dovecot/dovecot-lda(+0x3b7e) [0x55f636880b7e]
Re: Email Server Backup Strategy
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi, On 10/2/20 4:59 am, Francis Augusto Medeiros-Logeay wrote: > What I do: > > 1 - I ran a maildirlock command to my mail folder 2 - I then rsync > the folder where my maildirs are, as well as the indexes, to a > remote location If rsync is not fast... then how about doing a snapshot and then rsync off the snapshot? (I do rsync over lvm snapshots to back up file systems cleanly) and, btw, perform file system dumps [ufsdump / ufsrestore like, but dump and restore on Linux] of *non-mounted* backup file systems fwiw. I have other rsyncs that happen via rsnapshot during the day, I don't worry about snapshotting them though, but I probably should > 3 - I tar.gz the daily backup 4 - I kill the maildirlock process > > I also use replication of my server so that I keep getting mail > when my main server isn't available. You mean backup mx? > As for postfix, I backup the database once a week, since it doesn't > get changed that often. > > Hope that helps! > > Best, > > Francis > > > > > On 09.02.2020 18:26, Esteban L wrote: >> Hello, >> >> Was thinking it would be wise to backup my server, in case >> anything "bad" ever happened, so that I could quickly get up to >> speed. >> >> 1. clone the whole drive -- which might be the best to ensure I >> keep the whole system working. >> >> 2. But, what about, if I just wanted to backup my Email server >> components? Postfix - which I think is just config files, and >> Dovecot - I think there is a doveadm backup for doing such >> things. >> >> What do you guys do, recommend for backups?? >> >> Thanks Cheers - -- Andrew McGlashan -BEGIN PGP SIGNATURE- iHUEAREIAB0WIQTJAoMHtC6YydLfjUOoFmvLt+/i+wUCXkBKkAAKCRCoFmvLt+/i +811AQCmzZtw7SLsKHi9bNybOtsuQwT/qqZ9GppCXJWAtRYzkQD+M3ZlXR6v3g9U 5Px4Aayix3mQyil0q7MZIYpNyrBWEjw= =YOGn -END PGP SIGNATURE- 0xA8166BCBB7EFE2FB.asc Description: application/pgp-keys
Re: Email Server Backup Strategy
What I do: 1 - I ran a maildirlock command to my mail folder 2 - I then rsync the folder where my maildirs are, as well as the indexes, to a remote location 3 - I tar.gz the daily backup 4 - I kill the maildirlock process I also use replication of my server so that I keep getting mail when my main server isn't available. As for postfix, I backup the database once a week, since it doesn't get changed that often. Hope that helps! Best, Francis On 09.02.2020 18:26, Esteban L wrote: Hello, Was thinking it would be wise to backup my server, in case anything "bad" ever happened, so that I could quickly get up to speed. 1. clone the whole drive -- which might be the best to ensure I keep the whole system working. 2. But, what about, if I just wanted to backup my Email server components? Postfix - which I think is just config files, and Dovecot - I think there is a doveadm backup for doing such things. What do you guys do, recommend for backups?? Thanks 0xEE41D33F.asc Description: application/pgp-keys
Email Server Backup Strategy
Hello, Was thinking it would be wise to backup my server, in case anything "bad" ever happened, so that I could quickly get up to speed. 1. clone the whole drive -- which might be the best to ensure I keep the whole system working. 2. But, what about, if I just wanted to backup my Email server components? Postfix - which I think is just config files, and Dovecot - I think there is a doveadm backup for doing such things. What do you guys do, recommend for backups?? Thanks -- https://www.little-beak.com "Doing what we can."
