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  1. Internal SMTP blocking zip with password

    Hi all, I current use Promox as MTA, the email from mail server send out to Proxmox in Internal SMTP Port. Now I want to block the file send out with zip password. I found the setting "Block encrypted archives and documents" in Virus Detector but seems that it no affect to my current case. Is...
  2. How come phishing email can pass all

    Hi, I tried the phishing test with my email gateway, the phishing email successfully pass all spam check and delivered to user. It can fake the sender even spf required. Here is the log, can anybody have experience on? Mar 23 13:10:50 smgw2 postfix/postscreen[2270866]: CONNECT from...
  3. Google 's invitation was rejected

    Hi all, I had an issue with the meeting invitation from Google Suite email. Many users from Gmail or Google Suite send the meeting invitation to Promox MailGW, few email were rejected Jan 20 14:58:24 proxmox1 postfix/smtpd[23310]: connect from mail-yb1-f201.google.com[209.85.219.201] Jan 20...
  4. sfp does not work, please advise

    Hi, Today my email system have a lot of fake email, the user send email to himself and here is the log in proxmox I am not sure why there are not spf check in the log event i checked Use SPF Thanks. Dec 22 13:30:05 proxmox2 postfix/smtpd[18199]: connect from unknown[221.157.187.72] Dec 22...
  5. [SOLVED] DNSBL wrong detection

    Hi all, I am newbie with Proxmox mailgw. I used the DNSBL in setting with zen.spamhaus.org, threshold 1. But i found that lots of messages were rejected, such as bellow but in spamhaus it clean ip RCPT from [192.174.81.114]:34373: 550 5.7.1 Service unavailable; client [192.174.81.114] blocked...

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