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  1. SMTP Banner Check Reverse DNS does not match SMTP Banner

    Connecting to 123.456.78.910 220 mail.domain.local Service ready [599 ms] EHLO keeper-us-east-1c.mxtoolbox.com 250-Requested mail action okay, completed 250-SIZE 20485760 250-ETRN 250-8BITMIME 250 OK [255 ms] MAIL FROM:<supertool@mxtoolboxsmtpdiag.com> 250 Requested mail action okay, completed...
  2. How configure smtp_helo_name and smtpd_banner in Proxmox Gateway 6.4-3

    Hi I have installed a new Proxmox Gateway 6.4-3 virtual machine. I want to change smtp_helo_name and smtpd_banner because when sending to one of the domains I get error 550 5.5.0 Invalid EHLO / HELO domain. In Proxmox v. 5.2-7 was configuration file in /etc/pmg/templates/main.cf.in, but in...
  3. [SOLVED] Cluster slow SMTP Connection time

    Hello, My Proxmox Mailgateway Cluster is now working fine. But sometimes I have bad SMTP Connection times, tested on mxtoolbox.com. But only on the second Proxmox Mailgateway Server. I disable Greylisting. Any ideas? SMTP Connection Time 6.944 seconds - Warning on Connection time SMTP...

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