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4

My recommendation is to change the envelope sender on the auto-reply sent at step (2) of your flow. It is this envelope sender address, which will receive any error messages at step (3). You can use an empty envelope sender at step (2). That will prevent the error message being generated at step (3). In the SMTP session it would look like this: MAIL ...


2

1) yes, likely the dmarc failure will cause gmail to junk your mails 2) also would be interested in an answer for this 3) I would (and we do) use the reply-to field for the customer address, our mails look like this: from: website@mydomain.com to: user@mydomain.com subject: contact form reply to: customer-addy@somewhere.com Hope this helps


2

Think of SPF and DKIM as ways to validate the mail path, and think of DMARC as an extension that also validates the message sender. Think of this as delivering a FedEx letter. It's easy to validate where the envelope was shipped from, and that the courier was legitimate, but it doesn't provide a way to prove that the letter inside the envelope is really ...


2

The only option is to build your own e-mail server using virtual machines which I don't recommend for your case. Microsoft e-mail solution is Exchange Online. https://products.office.com/en-US/exchange/compare-microsoft-exchange-online-plans To send bulk marketing e-mails from your site, you can use SendGrid from Azure Marketplace. ...


2

The simplest solution is to run two mail servers on premise. One handles only incoming mail, while the other handles only outgoing mail and knows nothing of the first server.


2

By default Postfix will use smtp as transport method when none of the sender based rules is matched. See: http://www.postfix.org/postconf.5.html#default_transport default_transport (default: smtp) The default mail delivery transport and next-hop destination for destinations that do not match $mydestination, $inet_interfaces, ...


2

First your smtpd_sasl_path is both wrong and wrongly specified. In dovecot.conf you set it to /var/spool/postfix/private/auth so in Postfix that should be smtpd_sasl_path = private/auth (not .../dovecot-auth). Notice how this is a relative path, relative to Postfix's chroot dir. Restart Postfix and the SASL errors should be gone. Second, it looks like you ...


2

There are lots of reasons for this. The first reason will be as you have guessed, the address book is out of date on the clients. Outlook in cached mode uses the OAB. This is only updated once every 24 hours by default on the server (which you can force) and is then downloaded by Outlook automatically once every 24 hours or when Outlook is restarted, ...


2

If I understand things correctly then spamassassin (or spamd, as you are using here) can not directly be used as a milter. You need spamass-milter in addition to spamassassin. See here: http://www.stefan-seelmann.de/wiki/mailserver-postfix-dovecot or here: https://www.nesono.com/node/220 for reference.


1

You may combine two sendmail.cf recipes: 1) MailertableRuleSets - it allows to select sendmail.cf custom rule-set for email routing via mailertable (custom routing by recipient domain) Warning: It requires a few lines patch of one of files used to generate sendmail.cf "Mailertable Rule Sets (sendmail)" by anfi (2004) 2) SmartTable - it shows how to route ...


1

This isn't exactly an answer to the question as posed, but it looks to me like you are doing things the hard way. The Sendmail configuration was written in a way that prioritises ease and efficiency for the software parsing that configuration, not for easy configuration and maintenance by humans. There's simply been no good reason to do that in recent ...


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Make sendmail.cf store ${cn_subject} with host part stripped in ${cn1_subject}. It makes finishing the implementation almost trivial. WARNING: Ask for opinions at news:comp.mail.sendmail before deploying it in not test environment. It MAY work but sendmail makes avoiding "unexpected side effects" MUCH MORE painstaking than I am ready to "invest". I ...


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By default, messages to postmaster are posted in the Aide room, where all administrators can read them. You can change this if necessary. For other addresses, simply add these to your vCard and you will begin receiving mail for them.


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Yes ,its find only domain name not FQDN, but when you setup email,account on thunderbird , thunderbird find only domain name then you can setup manual with FQDN " mail.test.com" incoming and outgoing both.


1

The email being attached to the message is the expected behaviour. That is called Envelope Journaling. https://technet.microsoft.com/en-us/library/bb331962(v=exchg.141).aspx "Microsoft Exchange Server 2010 supports envelope journaling only. " Therefore what you are seeing with regards to the attachment is what I would expect. If you have been seeing ...


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It's possible to flush one particular email, instead of the whole queue. If you do this for each message in turn, with a two-second sleep between messages, that should do what you ask for. First, you need to find the queue IDs of the mails in the queue. You can get this by using the command postqueue -p. Here's an example output: -Queue ID- --Size-- ...



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