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0

Disclaimer: I'm assuming that you only want to parsing email with mailin and the email won't to delivered to dovecot again. To do that, replace the virtual_transport parameter so it becomes virtual_transport = smtp:localhost:10025 That's it, instead delivering it to dovecot, postfix will pass the email to mailin via SMTP port 10025.


1

iptables supports connection/rate limit. From iptables man page: connlimit Allows you to restrict the number of parallel connections to a server per client IP address (or client address block). [!] --connlimit-above n Match if the number of existing connections is (not) above n. --connlimit-mask prefix_length Group ...


0

FakeSMTP https://nilhcem.github.io/FakeSMTP/ is cross-platform and open-source.


2

My guess, this header just some meta-information about DKIM processing milter, especially the deprecated dkim-milter. X-DKIM: Sendmail DKIM Filter v2.8.2 DOMAIN SOMEVALUE DOMAIN: Hostname in FQDN format SOMEVALUE: queue ID when this message processed by sendmail For example, X-DKIM header from this question. Received : from localhost ...


1

There are a number of ways you could fix this. Change the SMTP setting in php.ini on the web server to use serverB rather than localhost Add aliases to to the postfix config on serverA to redirect new messages to serverB for each of the local addresses you want to handle. Change your PHP code/application config to use qualified addresses which deliver to ...


2

Postfix refused relay to mydomain.com because isn't listed as local or virtual domain. The first step is define the domain class (postfix.org/ADDRESS_CLASS_README.html). myhostname is the machine name. mydestination is a list with domains hosted and users listed on passwd.


8

What are the errors in the log from 10:06:40.691 to 10:06:40.723? Line 10:06:40.691 5 SMTPI-011473([69.197.220.11]) inp: \022\003\001 was part of SSL handshake. Byte 0 = 022 means SSL record type = 22 (SSL3_RT_HANDSHAKE) Byte 1-2 = 0301 was means SSL version = TLS1_VERSION See this page for reference. But unfortunately the server on port 587 doesn't ...


0

Looks like a typo to me. Submit errata.


2

Solution - Postfix version 2.7 or above required: /etc/postfix/master.cf #smtp inet n - n - - smtpd 127.0.0.1:smtp inet n - n - - smtpd -o syslog_name=postfix-localhost -o smtp_helo_name=localhost -o smtp_bind_address=127.0.0.1 -o myhostname=localhost ...


1

Your postfix smtpd process is complaining with a: <us.er@mydomain.com>: Relay access denied because: mydomain.com is not configured/recognized as a local final destination; and postfix is not configured to relay messages to an external mydomain.com domain; So, being unable to deliver both localy (as for point 1) and remotely (as for point ...


-1

Apparently Google has an interest in verifying some accounts and puts a capcha in the log-in block. Log in to your google account and go to this page to turn of the capcha: https://accounts.google.com/DisplayUnlockCaptcha


0

Check your tracking logs - they show "from" addresses in readable format and also you can see the subject to know you're getting the right account login. You may also be able to see emails in the outbound queue if they are stacking up rapidly.


0

NO, you can't Reference: postfix mailing list postfix header_checks work on one header at a time. so there's no way to have a rule that works on all the headers. and in particular, there's no way to specify a rule that says if "$header doesn't exists". postfix author comment As documented, header_checks makes a decision one header at a ...


2

Delivery Reputation: Would using php mail() vs SMTP make any difference with the delivery rate? From what I understand, Postfix is going to be using SMTP protocol when communicating with other servers on the internet when delivering emails, so therefore is it safe to assume that it doesnt matter if the email was sent to postfix via php mail or smpt from ...


0

Try with the IP to configure it. Seem a dns error at your carrier side, and surelly it cache the dns entry when you use the wifi.


2

In many cases, the spamming scripts are uploaded by an automated process after an automated scanner finds a vulnerability in your webapp. Those spam scripts almost always use php mail() function and not SMTP. If someone was to hack into your server and grab smtp passwords from config file, then you have lost the castle anyway. But in a lot of automated ...


-3

Be sure you are at rev 3.11.1 of claws-mail. If not try terminal: sudo add-apt-repository ppa:claws-mail && sudo apt-get update && sudo apt-get install claws-mail On my system, the 3.11.1 install replaced current install. Bring claws-mail up, check the rev, go to configuration>preferences tab (basic) box1 'yourname', box2 'yourname', ...


0

So it turned out to be something trivial, I should've allowed outgoing traffic to ports 25, 465, 587 and in the case of Mandrill 2525 as well. So edit /etc/csf/csf.conf and add 25,2525,465,587 to TCP_OUT and TCP6_OUT. Source: https://community.centminmod.com/threads/csf-firewall-info.25/#post-6613


2

There are multiple solutions. All are described in the documentation: http://www.postfix.org/ADDRESS_REWRITING_README.html#delivering


0

I have found why I got this error. Because the command I use is use for zimbra 8.5 (my zimbra version is 8.0) so it throw the error. In zimbra 8.0 use: zmlocalconfig -e postfix_smtp_sasl_password_maps=hash:/opt/zimbra/conf/relay_password instead of the above command.


0

Do not set up an MX record if you don't want to receive mails. Also do not open the SMTP port (25). Some spambots surely will try to send an email to your domani but they will be rejected as there won't be any service to accept them. If you have to operate a mail server anyway set up the mail server to REJECT emails coming to that domain.


0

I'm not sure it's technically necessary (as in things might work even if you don't make changes), but the two areas I would be modifying to accomodate this request are SPF and DKIM records. Alternately, you could try requesting that the third party send from their domain but use a reply-to of your domain.


4

First of all, if you can, use a mass mailing service. There are plenty of them out there with various features and prices. Most don't cost very much. They will deal with things like managing people unsubscribing from lists, ensuring you are compliant with various anti spam legislation around the world, getting their servers off of blacklists, and give you ...



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