similar to: Helo Checks not always working?

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

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

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,

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

Package: logcheck-database Version: 1.2.44 Severity: wishlist -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 When using postfix smtpd_helo_restrictions / check_helo_access, the lines attched in 'postfix-helo.log' appear. The following rule can be used to filter them out: ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: reject: HELO from [^[:space:]]+: 553

Hello to all members. I am using Dovecot for 5 years, but this is my first post here. I am aware of the various autoresponder scripts for vacation autoreplies (I am using Virtual Vacation 3.1 by Mischa Peters). I have an issue with auto-replies - it is vulnerable to spamming with forged email address. Forging can be prevented with several Postfix settings, which I did in the past - but was forced

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

Linux caloro.ch 3.16.0-4-amd64 #1 SMP Debian 3.16.39-1 (2016-12-30) x86_64 GNU/Linux Apt-get install postfix dovecot Adduser -m maurizio Add config steps to dovecot.conf, main.cf, master.cf Email from CLI running, but if connect from Outlook or Thunderbird I have this error, I think that maurizio this user aren?t opened correct on this sqldb? root at caloro:/home/maurizio# postconf -n

Hello, I'm using version 2.3.4.1 and I have a fairly simple setup based on a submission server where I run dovecot and a relay server with postfix. The relevant part of dovecot's config is as follows (sanitized): hostname = submission.domain.local submission_client_workarounds = whitespace-before-path submission_relay_host = 192.168.1.1 <- postfix submission_relay_port = 25

Not technically a centos question, but a lot of you guys seem to manage some large systems and I could use some clarification on a postfix setting.* *reject_unknown_client_hostname (in postfix < 2.3 reject_unknown_client) When I first used this there were issues with users trying to send mail through the server from hotels, wireless spots, etc. This was solved by pushing up permit

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

For reasons of user privacy and security I usually configure submission servers to not include accurate IP address and HELO information of authenticated users. (Usually replacing it with a private-use domain / IPv6 address.) Dovecot submission (2.3.2) will produce a header something like this (where ?10.22.36.10" is a public IP address) Received: from [192.168.1.184] ([10.22.36.10]) by

Hello... I am encountering a problem sending emails from Windows using an extermal smtp server. When attempting to send out the email, the following error is returned: 501 Syntax: HELO hostname I have checked the format of the emails, and they are ok. It seems it''s choking right at the begging of the connection to the smtp server, when my computer needs to identify itself by sending

Hi, I can no longer connect to Dovecot (IMAP). The connection is terminated by Dovecot after Client Helo. My server: Dovecot 2.3.3 Debian buster/sid Architecture: ppc My problems started in late August after upgrading Dovecot. SSL settings: ssl_dh = </etc/ssl/dh2048.pem ssl_min_protocol = TLSv1.2 ssl_cipher_list =

Hello Please I need to add "Maurizio" to this MSSQL DB, but I don't now how to add this step in my opinion I'think that the user can't be found, so I will have the "unknown user" Can give here any little help to fix this? Feb 8 12:09:56 caloro dovecot: auth: Debug: auth client connected (pid=13300) Feb 8 12:09:56 caloro dovecot: auth: Debug: client

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

On Wed, Oct 15, 2014 at 03:23:39PM +0000, VONDRA Alain wrote: > I see only qemu-img consumming some CPU and MEM : > > 25897 qemu 20 0 5825976 2,429g 4368 S 5,6 32,2 603:09.34 qemu-kvm That's qemu, not qemu-img. > I have indeed, some nfs errors : > > [475747.296041] nfs: server 192.203.100.247 not responding, still trying > [475747.772022] nfs: server

On 10/12/2020 4:06 AM, Rowland penny via samba wrote: > On 12/10/2020 02:54, Jason Keltz via samba wrote: >> I've been working on a Samba AD setup with a bunch of test machines - >> the one DC, and a bunch of clients. Last night, I ended up switching >> the name of the test machines temporarily (except the DC), and >> re-joining the domain (that's for another

Hey folks. One feature I'd really like to see in dovecot is the ability to point it at a database (with a configurable query) and have it allow or deny a connection based on looking up the source IP address in that database. I run Postfix, and I've got it configured to use a database server for its smtpd_client_restrictions checks. Ideally I'd like to point dovecot at

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