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Loves reading the forums.
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Hi Nick, thanks for help.
yes, [email protected] is users, so I have delete and recreate the user and change the password stronger, reinstall os client and disable android access.
I have 3 office witch 2 of them in the external network (access by internet) an so many user access by smartphone, so I can not use trusted network concept
for encryption type I set none.
my friend said that I have add reject_sender_login_mismatch rule, so the spam can not send email with different account
for this case I have test my smtp with this configuration
I can send email use unknown email but with real account and password.
I have try googling for add reject_sender_login_mismatch rule postfix, but I am not sure about the right script.
Thanks. -
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I have check /var/log/message-20150809 but find nothing.
when I recheck /var/log/maillog-20150809 the size very big (1,1 GB for a week)
and I find some unknown email log
my smtp server have been SMTP Authentication Enabled, I have test without real username or password the email can not be sending.
any idea? -
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So far, I have delete the local account and recreate with the new password, reinstall Client OS, blacklist some unknown email sender from mailer-daemon report and block some ip (101.78.174.62 etc) with iptable. I think the broadcast messages has been stopped and I will check it for some day to make sure.
but I am not sure where is the spam source come from. I am not check the messages log yet, so I'll do it tomorrow.
Thanks for help Nick. -
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Nick Howitt wrote:
.. and the same question. Do you hand a dynamic ip? If so, are you sending mail directly or relaying it via your ISP?
My Server using static IP address and sending directly. -
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I have the same issue and I think my zarafa have been spamming
the similar line exist more than 2000 line at the maillog
Please Help.
Thanks. -
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