• Our team is looking to connect with folks who use email services provided by Plesk, or a premium service. If you'd like to be part of the discovery process and share your experiences, we invite you to complete this short screening survey. If your responses match the persona we are looking for, you'll receive a link to schedule a call at your convenience. We look forward to hearing from you!
  • The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

MailEnable and RFC violation

D

Danich

Guest
I posted this on the MailEnable forum but putting here as well to get wider coverage and because it is bundled with Plesk.
-------------------------------
version 1.983, installed with Plesk, on Windows 2k3 Standard.

Certain MTAs are rejecting mail with a variety of 5xy errors. Looking through the log I find that MailEnable is sending:
EHLO myhostname. (which garners a 5xy)
HELO myhostname. (which garners a 5xy)
and the connection fails. (note the trailing period after the myhostname).

Both RFC-821/2821 and 1869 state that the sending MTA is to announce itself using myhostname or FQDN; myhostname with a trailing period is neither and some MTAs are doing stringent checking.

I can't see where to set/change/configure this. Looked through the registry and found no such entries. Can't find anything in the MailEnable Administrator.

At a bit of a loss here. Anyone else run into this?
 
What you're seeing might be the "14 character bug". (i think it was 14, might have been less). The actual server name that appears under the computer name tab of the system properties dialog can't be longer than 14 characters. I reduced mine to like 8 characters to bypass this issue. If the name is too long it'll prevent SMTP from working right and you'll get various issues.

Aternatively, it might really be related to the mail name or host name. Get to those in the Mail Enable MMC by drilling to Mailenable mgmt, servers, localhost, connectors, right click 'smtp', properties, on the general tab set them to what you want them to be in the first couple boxes. It's also possible your welcome message (security tab, same dialog) is set to a custom value that's overriding the other values.

You probably ought to check all three. :)
 
You must log in or register to reply here.
Back
Top