similar to: How "safe" is reject_unknown_helo_hostname?

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

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 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

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

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

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, I'm running our local school's mail server on CentOS 7, Postfix and Dovecot. We get quite a lot of spam, so I have the following sender restrictions in my /etc/postfix/main.cf: --8<------------------------------------------------------ # Restrictions SMTP smtpd_helo_restrictions = reject_unknown_helo_hostname smtpd_sender_restrictions = reject_unknown_sender_domain,

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

hello list hello dovecot network hello all the reader here is a sieve script this ######################################## require ["fileinto","regex","comparator-i;ascii-numeric","reject","relational"]; # rule:[spammanage] if header :value "ge" :comparator "i;ascii-numeric" ["X-Spam-score"] ["500"] {

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

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

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

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

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 to all, im using my box as mail server (CENTOS 4.4) with postfix 2.3.4 when i try to send message i got this message in my mail log any idea with my problem, thank you very much in advanced,hope you can help me. Dec 11 18:35:33 support postfix/lmtp[3341]: CCB9B40698: to=<personal at xxx.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.95, delays=0.13/0.03/0.01/0.78, dsn=2.6.0,

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,

I have a postfix mail server with sql authentication and I want to implement sieve on it. Sieve is working relative good, rules who contain 'fileinto' are executed perfectly. The problem is the redirect to other servers. I configured a rule in Sieve to redirect any email containing "redirect" in subject to a specified foreign destination. # So practically a email coming from

I'm getting closer, now with SMTP permitted to whole of Internet to connect to my SMTP/postfix server & for my postfix server to connect out to public Internet on tcp 25 as well. I send emails from permitted domain's SMTP servers with "Receipt Acknowledgemt" & the ack returned said it was delivered but somehow there's no mail in the mailbox & using the site below

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