similar to: Configure dovecot to provide SASL authentication

I wanted to pass this along. I'm sure it may be nothing new to most of you, but it has greatly reduced sasl attacks and spam. I found most of it here: https://scottlinux.com/2011/05/26/prevent-postfix-brute-force/ I added the fail2ban rule and modified my postfix main.cf as follows: smtpd_client_connection_rate_limit = 3 smtpd_delay_reject = yes smtpd_helo_required = yes

Hello, i use Postfix (2.7.1) and Dovecot (1.2.14) on my FreeBSD Server. I use Postfixadmin and Virtuell User. The login going without problems, but the SASL Auth want not work. Have someone a Idea? Regards Silvio #postconf -a dovecot # postconf -n alias_maps = hash:/etc/aliases allow_percent_hack = no biff = no command_directory = /usr/sbin config_directory = /etc/postfix content_filter =

I have had the same email address since 1997 (when microsoft stole bob.com from me thanks to network solutions...) In the early days I of course was free with my email and used it everwhere. Fast forward to 2012, some 15 years later. woof..the amount of spam sent to me has always just kept getting worse and worse. On my centos 5 server I just used sendmail with spamassassin and it killed a

I am I a situation where I have to wipe my remote server and reinstall, Its been a while since I built a server and I am not as sharp as I use to be I am running FreeBSD 12.1. well at least the server is... I am getting constant authentication errors like Dec 28 22:10:18 triggerfish dovecot[21809]: imap-login: Aborted login (auth failed, 1 attempts in 6 secs): user=<jason at example.com>,

Hi list, I have noted over the last week or so my DNS servers are dumping lots of messages for bogus domain lookups. Examining the postfix queue with postqueue -p: I see many (Host or domain name not found. Name service error for name=bdgiedjhea.po6e4ina.com type=MX: Host not found, try again) Jake at bdgiedjhea.po6e4ina.com My question - why does this

Hi list, I have been getting the following types of log messages Jan 30 08:22:33 ndgonline postfix/smtpd[30538]: NOQUEUE: reject: RCPT from unknown[71.46.229.50]: 450 4.7.1 Client host rejected: cannot find your hostname, [71.46.229.50]; from=<DWoodman at orangebankfl.com> to=<rkampen at ndgonline.net> proto=ESMTP helo=<mail.floridianbank.com> a rdns check shows all is well

Hello, I try to bring Postfix + Dovecot + SASL in the running. Unfortunately, this has not succeeded to me, only the Pop3 daemon runs without problems. /var/log/dovecot.log dovecot: 2009-04-03 01:04:38 Error: auth(default): bind(/var/spool/postifx/private/auth) failed: No such file or directory dovecot: 2009-04-03 01:04:38 Fatal: auth(default): net_listen_unix(/var/spool/postifx/private/auth)

Hi, I'm currently fine-tuning my mail server (Postfix and Dovecot on CentOS 7). SPF, DKIM and DMARC work fine, now I'd like to limit the spam tsunami. Besides the official Postfix documentation, I've read a few articles about Postfix spam restrictions, namely these : https://www.linuxbabe.com/mail-server/block-email-spam-postfix https://wiki.centos.org/HowTos/postfix_restrictions

Hi Buddies, I have 2 servers running dovecot + postfix for pop/imap users. The users mailbox are in a Nfs storage. The load of server is ranging at 3.0 to 15.0. I really dont know what happened.. I read a lot about tuning of dovecot, and the changes are applied, how you can see. The Hardware of server is really good! The host have 8GB of mem and 2 sockets with 2 cores anyone. The server receives

Helo hostname MUST have resolvable hostname. Crazy or not, but i use this. The _access-allow parts for server you really trust. smtpd_client_restrictions = permit_mynetworks, reject_unauth_destination, check_client_access cidr:/etc/postfix/check_client_access-allow.cidr, reject_unknown_hostname, reject_non_fqdn_hostname, reject_invalid_hostname,

i'll guess the solution to my problem will be something simple and obvious, because i know i ain't the first person to do this and it ain't all that complicated, but i've been staring at it for days and can't see what's wrong. new installation; os x snow leopard server; postfix 2.5.5; dovecot 1.1.17apple0.5 i'm trying to get SMTP auth working via SASL. using a

Yes !! you totaly right.. When i make it, its gone within 1 month, the new mail setup is ready, and tested, only the migration todo ... But first snowboarding again next week.. :-)) Greetz, Louis > -----Oorspronkelijk bericht----- > Van: samba [mailto:samba-bounces at lists.samba.org] Namens Rowland penny > Verzonden: donderdag 7 januari 2016 15:00 > Aan: samba at

All i have is : smtpd_client_restrictions = permit_mynetworks, permit_sasl_authenticated   I disabled the unknown restriction due to lots of customers of me are missing PTR records, which needs to be set bij the internet provider. So they got blocked, i had to remove these.   The Helo check is often on the IT department can adjust them selfs. And most spammers have incorrect helo’s

hello all reader hello list hello centos network since I've installed dovecot deliver. e-mails no longer pass through amavisd. amavisd no longer work. c is to say I have no anti-spam and anti virus my postconf and dovecot -n [root at r13151 ~]# postconf -n alias_database = hash:/etc/aliases , hash:/etc/postfix/aliases alias_maps = hash:/etc/aliases , hash:/etc/postfix/aliases body_checks =

hello all reader hello list hello dovecot network since I've installed dovecot deliver. e-mails no longer pass through amavisd. amavisd no longer work. c is to say I have no anti-spam and anti virus my postconf and dovecot -n [root at r13151 ~]# postconf -n alias_database = hash:/etc/aliases , hash:/etc/postfix/aliases alias_maps = hash:/etc/aliases , hash:/etc/postfix/aliases body_checks

Hi all, I?ve got postfix setup to use dovecot-lmtp for (virtual) user delivery, and things to users or aliases that Dovecot knows about now get delivered correctly. However, I?ve done something wrong with postfix and/or the LMTP configuration because upon RCPT TO, instead of forwarding the mail off to the configured smartest, somehow dovecot-lmtp is ending up in the mix. (Perhaps this is more a

Hi list, I am running a Debian Lenny machine with Postfix 2.5.5 and Dovecot 2.0.8. Up until now I ran Postfix with the Procmail delivery agent succesfully. The machine has only local users; I am not using virtual mailboxes. Due to obvious reasons I want to switch to Dovecot LDA delivery, through LMTP. I spend quite some time finding 'the' configuration for both Postfix and Dovecot,

Hidy-ho, I'm having a difficult time getting catch-all working when using Dovecot LMTP. I would like *@example.com (everything) to go to virtual at example.com, where virtual is a valid virtual user. It seems that things are getting as far as LMTP, but then the mail gets bounced. To wit: Aug 21 08:02:50 hostname postfix/lmtp[4914]: 8DF8E9AFE6: to=<test at example.com>,

Hi, I come back with my problem: On debian lenny, using dovecot 1.1.13-2~bpo50+1 I try to configure my setup (with Postfix virtual domains) to use dovecot as lda but nothing happens, as if postfix not delegate to dovecot I am using the contreol panel alternc (http://www.alternc.org). All the maildir are in the format /var/alternc/mail/i/info_domainepublic.net for info at domainepublic.net The

Hi, I'm hoping that someone might be able to help, as I've been going in circles with trying to get the right configuration done here. I'm also not sure whether this is more of a Dovecot or DSpam question, so I'm posting the same to both mailing lists. My goal is to have a mail setup that is as follows: [Incoming email] --> [Postfix] --> [Amavis] --> [DSpam] -->