I get a lot of spam in my unused account.

Discussion in 'Server Operation' started by Milly, Oct 14, 2020.

  1. Milly

    Milly Member

    Greetings.
    - I have a The Perfect Server-Debian-Apache, it works fine for months.
    - On this server I have five email accounts.
    - I have not changed any settings.
    - I actively use only one account without problems.
    - But another one that I don't use, a lot of spam emails have been arriving for a week.
    - In the ISPconfig, in Spam Filter I have tested with "Normal" and "Non-Paying" without success.
    - Has anyone had the same problem these days?

    ● clamav-daemon.service - Clam AntiVirus userspace daemon
    Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor preset: enabled)
    Drop-In: /etc/systemd/system/clamav-daemon.service.d
    └─extend.conf
    Active: active (running) since Sun 2020-10-11 00:22:10 CST; 2 days ago
    Docs: man:clamd(8)
    man:clamd.conf(5)
    https://www.clamav.net/documents/
    Process: 420 ExecStartPre=/bin/mkdir /run/clamav (code=exited, status=0/SUCCESS)
    Process: 480 ExecStartPre=/bin/chown clamav /run/clamav (code=exited, status=0/SUCCESS)
    Main PID: 494 (clamd)
    Tasks: 2 (limit: 1167)
    Memory: 10.8M
    CGroup: /system.slice/clamav-daemon.service
    └─494 /usr/sbin/clamd --foreground=true
    Oct 13 09:00:02 mail clamd[494]: Tue Oct 13 09:00:02 2020 -> SelfCheck: Database status OK.
    Oct 13 09:23:58 mail clamd[494]: Tue Oct 13 09:23:58 2020 -> Reading databases from /var/lib/cl
    Oct 13 09:25:07 mail clamd[494]: Tue Oct 13 09:25:07 2020 -> Database correctly reloaded (89235
    Oct 13 11:00:03 mail clamd[494]: Tue Oct 13 11:00:03 2020 -> SelfCheck: Database status OK.
    Oct 13 13:00:01 mail clamd[494]: Tue Oct 13 13:00:01 2020 -> SelfCheck: Database status OK.
    Oct 13 14:00:01 mail clamd[494]: Tue Oct 13 14:00:01 2020 -> SelfCheck: Database status OK.
    Oct 13 15:00:02 mail clamd[494]: Tue Oct 13 15:00:02 2020 -> SelfCheck: Database status OK.
    Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailab

    ● spamassassin.service - Perl-based spam filter using text analysis
    Loaded: loaded (/lib/systemd/system/spamassassin.service; disabled; vendor preset: enabled)
    Active: inactive (dead)

    Oct 13 16:42:56 mail systemd[1]: /lib/systemd/system/spamassassin.service:6: PIDFile= reference

    Spam.png

    Thanks
     
  2. Taleman

    Taleman Well-Known Member HowtoForge Supporter

    It is strange if an e-mail address does not receive spam. If address is published somewhere, has sent e-mail to someone with malware on workstation that collects e-mail addresses or is just guessed by spammer it receives spam.
    I switched from amavis to rspamd, that in my opinion is better, or at least I hope I can configure it better so most spam is repelled.
    Most spam is rejected by postfix on my host. I have set it up to check server has PTR record and is also otherwise properly configred, and is not in any of the black lists I use. Result:
    Code:
    Postfix log summaries for Oct 13
    
    Grand Totals
    ------------
    messages
    
        386   received
        264   delivered
          0   forwarded
          4   deferred  (44  deferrals)
          2   bounced
       1504   rejected (85%)
          0   reject warnings
          0   held
          0   discarded (0%)
    So 85% of arriving e-mail is thrown away and not given to rspamd (or amavis) to scan. Of the remaining 386 e-mails. 264 are deliverd to recipient mailbox, the rest is marked as spam, probably.
     
    Milly likes this.
  3. Th0m

    Th0m ISPConfig Developer Staff Member ISPConfig Developer

    If its a general address like [email protected] it is frequently guessed by spammers. I see a lot of spam is detected, just not moved to the junk folder. You can enable move to junk for that account so the mails won't be in your inbox anymore.
     
    Milly likes this.
  4. Milly

    Milly Member

    So I do not understand what happens, the email account has not been used anywhere.
    I started getting a lot of spam since last week.
    It is also not an easy account to guess as it is [email protected].
    I'm going to do more research and try rspamd.

    Thanks for the info
     
  5. Taleman

    Taleman Well-Known Member HowtoForge Supporter

    Spammers try email addresses, like start with [email protected], [email protected], ... then [email protected], [email protected] ... [email protected], [email protected].
    Eventually they hit [email protected].
    I once had an e-mail address that I never used anywhere. In that case it took almost full year before first spam arrived. So do not worry why spam arrives, there is nothing you can do. Examine how you can reject that spam or automatically move it to Junk folder. Or delete that mailbox, if it is never used anyway.
     
    Milly and Th0m like this.
  6. Milly

    Milly Member

    Now I understand Taleman, it is curious that they did not send to [email protected] [email protected] or [email protected] but to home2 @
    It is true that I have had little spam on the main account I use most, but it is always rejected or marked as spam and never was that much.
    I will look for a solution on how to reject with postfix and I will look for why most of the spam is not marked as such.
    Or I will delete the account.

    Thank you very much for the information.
     

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