Adding DKIM to Postfix

DKIM on Postfix: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-dkim-with-postfix-on-debian-wheezy The configuration can be tested by sending an empty email to check-auth@verifier.port25.com and a reply will be received. If everything works correctly you should see DKIM check: pass under Summary of Results. ========================================================== Summary of Results ========================================================== SPF check: pass DomainKeys check: neutral DKIM check: pass Sender-ID check: pass SpamAssassin check: […]

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DMARC

Amazonon DMARC (http://sesblog.amazon.com/post/Tx22ZELXSSZRYZR/What-is-DMARC-and-should-you-use-it). This Google article is also helpful: https://support.google.com/a/answer/2466563?hl=en If you scroll down to the ‘Example records’ section, you’ll see a number of examples on how to write the TXT record. Here’s an example of that record: _dmarc.advancedmediawebs.com. 3600 IN TXT “v=DMARC1; p=quarantine; pct=5; rua=mailto:mark@domain.com”

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Is SpamAssassin Working

Check the header of an email X-Spam-Status: No, score=0.1 X-Spam-Score: 1 X-Spam-Bar: / X-Ham-Report: Spam detection software, running on the system "server.domain.com", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have […]

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IMAP and POP Email Settings

For a plesk server IMAP Incomming server Server: mail.domain.com Connection security: none Authentication: Password, transmitted insecurely User Name: user@domain.com Port: 143 Outgoing Server: Server: mail.domain.com Connection security: STARTTLS Authentication: Encrypted password User Name: user@domain.com Incomming: Port 587 POP Incomming server Server: mail.domain.com Connection security: STARTTLS Authentication: Encrypted Password User Name: user@domain.com Port: 110 Outgoing Server: […]

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Clear Mail queue on Postfix or Plesk

How to clear the mailqueue. Check the mailq: # /usr/local/psa/admin/bin/mailqueuemng -s View 5 of the items for a certain domain: # /usr/local/psa/admin/bin/mailqueuemng -s | grep -C 5 user@domain.com # /usr/local/psa/admin/bin/mailqueuemng -D" or # postsuper -d ALL If you get a permission error on an older PLesk 9 instance # /usr/sbin/postsuper -d ALL To remove specific […]

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Setting up mail on iPhone/iPad/iOS

Source: http://www.one.com/en/support/guide/mail/setting-up-mail-on-iphone-ipad-ios http://support.apple.com/kb/HT4810 If you use a common email provider, your device will load your email settings automatically. If your device doesn’t load these settings and you don’t know them, contact your email provider and ask for this information: My Email settings My email address: My email provider: Incoming Mail Server Settings Account type (POP […]

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Spam Check list

Check the mail queue in a plesk server: # /usr/local/psa/admin/bin/mailqueuemng -s mail queue is full of spam type messages like this: Subject: Mr.: 14623c9d 65% off for you! Sale Sale Sale!! Vigara – 0.54$, Cilias – 1.09$, Levtira – 1.15$.. and more more more… ” Steps to take: 1. Check the mail queue for suspicious […]

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