How to use SpamAssassin with Postfix?
How to Install Spamassassin with Postfix and Dovecot on Ubuntu/Debian Server
- Install Spamassassin.
- Setup a user account and group for spamd service.
- Configure Spamassassin.
- Start the Spamassassin daemon (spamd)
- Configure Postfix to use Spamassassin as a filter.
- Configure Spamassassin to Mark Spam Messages.
How do I stop spam emails on postfix?
Tips to Block Email Spam with Postfix SMTP Server
- 1) Reject Email. We recommend that you set rules to reject emails if the sender’s email is not having a valid MX record or A record.
- 2) Enable Greylisting.
- 3) Use the Public Anti-Spam Blacklists.
- 4) Create a Whitelist.
How do I report spam to SpamAssassin?
Other SpamAssassin users may benefit from your efforts to report spam! If you enable the SpamCop plugin, just run spamassassin -r to report a spam message.
Why postfix mail goes to spam?
Speed Of Sending Emails If you have set up Postfix for sending just bulk marketing emails and that too to a third party list of non-optin users, then your emails are bound to land in spam in the first go itself.
How do I stop spam emails from server?
Easy Steps to Prevent Your Emails from Landing in the Spam Folder
- Check the Content of Your Emails.
- Verify the IP/Domain Reputation.
- Use SMTP Authentication on Email Scripts.
- Set Proper SPF and DKIM Records.
- Consider a Dedicated/Private IP Address.
- Use Security Certificate on the Mail Server.
Is dovecot an MDA?
Dovecot developers primarily aim to produce a lightweight, fast and easy-to-set-up open-source email server. The primary purpose of Dovecot is to act as mail storage server. Mail is delivered to the server using some mail delivery agent (MDA) and stored for later access with an email client (mail user agent, or MUA).
Is dovecot a SMTP?
As of version 2.3. 0, Dovecot provides an SMTP submission service, also known as a Mail Submission Agent (MSA).
Why is my email being detected as spam?
Possible reasons include: The people you are sending the email to have strong spam filter settings on their email account or marked a previous email from you as spam. Your email port settings need to be updated or adjusted, especially if you are currently using port 25 for outgoing mail.
What’s the difference between Postfix and SpamAssassin?
Postfix — the Sendmail Replacement Overview The SpamAssassin system is software for analyzing email messages, determining how likely they are to be spam, and reporting its conclusions. It is a rule-based system that compares different parts of email messages with a large set of rules.
How does SpamAssassin work to get rid of spam?
SpamAssassin uses a scoring system: messages are tagged as spam only when they have enough spam characteristics in total. This in combination with other features results in very few false positives.
How to whitelist an e-mail address in SpamAssassin?
You should whitelist the e-mail addresses of well-known legitimate senders to avoid the chance of them being mis-identified by the SpamAssassin default rules. Add «whitelist_from»settings to file /etc/mail/spamassassin/local.cffor each important client, mailing list and other known spam free senders.
Where can I find SpamAssassin out of the box?
SpamAssassin is installed «out of the box» in /usr/share/spamassassin with a good set of spam identification rules. You can specify your own settings in file /etc/mail/spamassassin/local.cf.