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Hello, I am wondering which variant is more secure for user authentication and password scheme. Basically I am looking at both variants: 1) MD5-CRYPT password scheme storage with CRAM-MD5 auth mechanism 2) SHA512-CRYPT password scheme storage with PLAIN auth mechanism In my opinion the option 2) should be safer although it is using PLAIN auth mechanism. Of course I would always use STARTTLS and

...al DNS cache on the server. As suggested using a local DNS cache would simply fix this issue but I am more interested to know what is generating these slow DNS queries... On Wednesday, February 4, 2015 2:59 PM, LuKreme <kremels at kreme.com> wrote: On 04 Feb 2015, at 03:38 , ML mail <mlnospam at yahoo.com> wrote: > I am running a dovecot and proxy server on two different virtual machines and on the dovecot proxy server I see around 5-6 times per day the following warning: > > Feb 03 16:15:12 auth: Warning: proxy(email at domain.com,xxx.xxx.xxx.xxx,<ABC123456789>): DNS...

Hello, I am running a dovecot and proxy server on two different virtual machines and on the dovecot proxy server I see around 5-6 times per day the following warning: Feb 03 16:15:12 auth: Warning: proxy(email at domain.com,xxx.xxx.xxx.xxx,<ABC123456789>): DNS lookup for mailboxserver.domain.com took 1.550 s I do not really understand how from time to time DNS queries are slow, I tried

On 12/5/14, ML mail <mlnospam at yahoo.com> wrote: > Hello, > > I am wondering which variant is more secure for user authentication and > password scheme. Basically I am looking at both variants: > > 1) MD5-CRYPT password scheme storage with CRAM-MD5 auth mechanism > 2) SHA512-CRYPT password scheme stora...

...nnection reset by peer Jan 31 14:13:22 auth: Warning: auth client 0 disconnected with 2 pending requests: EOF Jan 31 14:13:26 auth: Warning: auth client 0 disconnected with 1 pending requests: Connection reset by peer maybe around 20-30 per day. On Friday, January 30, 2015 9:28 AM, ML mail <mlnospam at yahoo.com> wrote: Hello, I was checking the errors on my mailbox server using "doveadm log errors" and found that around 2-3 times a day I get the following error: Jan 29 22:14:43 auth: Error: auth worker: Aborted request: Lookup timed out Any ideas if this is a bad sign? For e...

On 04 Feb 2015, at 03:38 , ML mail <mlnospam at yahoo.com> wrote: > I am running a dovecot and proxy server on two different virtual machines and on the dovecot proxy server I see around 5-6 times per day the following warning: > > Feb 03 16:15:12 auth: Warning: proxy(email at domain.com,xxx.xxx.xxx.xxx,<ABC123456789>): DNS...

...che on the server. As suggested using a local DNS cache would simply fix this issue but I am more interested to know what is generating these slow DNS queries... > > On Wednesday, February 4, 2015 2:59 PM, LuKreme <kremels at kreme.com> wrote: > On 04 Feb 2015, at 03:38 , ML mail <mlnospam at yahoo.com> wrote: >> I am running a dovecot and proxy server on two different virtual machines and on the dovecot proxy server I see around 5-6 times per day the following warning: >> >> Feb 03 16:15:12 auth: Warning: proxy(email at domain.com,xxx.xxx.xxx.xxx,<ABC12345678...

...: spamc[16545]: skipped message, greater than max message size (512000 bytes) The spam mail was around 900 kbytes as such I have changed the spamc limit to 1MB. Bastard spammer who abuses this limit by attaching a big image... Regards ML On Thursday, January 15, 2015 12:23 PM, ML mail <mlnospam at yahoo.com> wrote: Thank you for your helpful hints on debugging this issue. I wanted first to get the mail which generates this error but unfortunately the user already deleted it as well from his trash. Now I got another hint and it looks like this mail had a big attachment to it. Is it poss...

On 12/06/2014 02:35 AM, Nick Edwards wrote: > On 12/5/14, ML mail <mlnospam at yahoo.com> wrote: >> Hello, >> >> I am wondering which variant is more secure for user authentication and >> password scheme. Basically I am looking at both variants: >> >> 1) MD5-CRYPT password scheme storage with CRAM-MD5 auth mechanism >> 2) SHA512...

On Jun 13, 2013, at 7:14 AM, ML mail wrote: > I just upgraded to Network UPS Tools upsstats 2.6.4 on Debian wheezy and noticed that it does not show the battery runtime anymore, the field is simply empty. It used to work before with NUT 2.4.1. Does anyone know what could be wrong? > > I am using the apcsmart UPS driver. The apcsmart driver was overhauled, and in 2.6.x, the previous

Hello, I just upgraded to Network UPS Tools upsstats 2.6.4 on Debian wheezy and noticed that it does not show the battery runtime anymore, the field is simply empty. It used to work before with NUT 2.4.1. Does anyone know what could be wrong? I am using the apcsmart UPS driver. Thanks, M.L.

...internal: 3.04 input.voltage: 233.2 output.voltage: 229.3 ups.firmware: 416.7.I ups.load: 063.0 ups.mfr: APC ups.model: Smart-UPS RT 2000 XL?? ups.serial: ups.status: OL ups.temperature: 034.6 ________________________________ From: Charles Lepple <clepple at gmail.com> To: ML mail <mlnospam at yahoo.com> Cc: nut-upsuser lists.alioth.debian.org <nut-upsuser at lists.alioth.debian.org>; Michal Soltys <msoltyspl-guest at alioth.debian.org> Sent: Friday, June 14, 2013 2:15 PM Subject: Re: [Nut-upsuser] Battery runtime not displaying On Jun 13, 2013, at 7:14 AM, ML mail...

Hello, I was checking the errors on my mailbox server using "doveadm log errors" and found that around 2-3 times a day I get the following error: Jan 29 22:14:43 auth: Error: auth worker: Aborted request: Lookup timed out Any ideas if this is a bad sign? For example some timeout on my side which is too low or is it just an aborted connection from the side of the IMAP client? The

Thank you for your helpful hints on debugging this issue. I wanted first to get the mail which generates this error but unfortunately the user already deleted it as well from his trash. Now I got another hint and it looks like this mail had a big attachment to it. Is it possible that spamc generated this error due to the size of the mail? Regards ML On Thursday, January 15, 2015 8:29 AM,

Hello I am using the quota warnings e-mail feature of dovecot to warn users at 80% and 95%. The issue here is that I have one use who his mailbox is now back down to 20% but he still receives the 95% mailbox full warning mail. Any ideas what could be wrong or what to do? My dovecot config of the mailbox server can be found here: http://article.gmane.org/gmane.mail.imap.dovecot/80823 Regards ML

Thanks for your tip regarding the busy network. I am using a one year old Cisco Catalyst 2960S (WS-C2960S-48TD-L) with cat6e cables and my network should not be overloaded as far as I know. My mailbox and mail proxy servers are on two different virtual machines on two different servers. It could be possible that it is something with the virtualization but my other VMs do not have any connection

Hello, I would like to know if it possible to have a dovecot IMAP proxy frontend where CRAM-MD5 can be used as auth mechanism (assuming I would be using a master user/password on the dovecot IMAP backend/mailbox)? I have read a few times the following http://wiki2.dovecot.org/PasswordDatabase/ExtraFields/Proxy page but somehow it is still unclear to me if the IMAP proxy then needs to have all the

Hello, It looks like my iteration SQL query (iterate_query) does not work as when I try to run "doveadm quota recalc -A" I get the following error: $ sudo -u vmail doveadm quota recalc -A doveadm(nobody): Error: user nobody: Mail access for users with UID 65534 not permitted (see first_valid_uid in config file, uid from userdb lookup). doveadm(nobody): Error: User init failed My

Hello, I am using the antispam plugin of Dovecot with SpamAssassin and in some cases when users move back mails from the Spam folder to their INBOX (false positive) they get the following error message: [SERVERBUG] failed to send mail Does anyone have an idea what could be the issue here? It is quite annoying as the mail then stays in the Spam folder and can not been re-learnt has ham. Best

Hehe sure. Here would be the output of dovecot -n on my maibox server: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.8 ext4 auth_master_user_separator = * auth_mechanisms = plain login cram-md5 disable_plaintext_auth = no first_valid_uid = 150 last_valid_uid = 150 login_trusted_networks = X.Y.Z.X mail_location = maildir:/var/vmail/%d/%n/Maildir mail_plugins = quota