Re: Does this mean reverse DNS was not setup?

denoxis wrote:
On Jan 28, 7:52 am, ProAm <snowdonconsulta...@xxxxxxxxx> wrote:


Can you expand on "email sender script" updating HELO property? Are you
mailing out for more than one domain and changing the HELO accordingly?
What email server program are you using? If you've got mis-matched HELO
and/or rDNS you'll be blacklisted within a very short time as a spammer.


Different ASP pages on different domains (web sites, I should say) use
the same Persist Email component to send notification (order
confirmation etc.).
All of them have the same HELO (DED516GBAU.maximumasp.com) which is
206.196.29.69
Until today that IP was resolving to an ARPA address. Now there is a
PTR record so the IP resolves back to DED516GBAU.maximumasp.com.
Even though I send emails from different web sites with different
"FROM" addresses, HOST is always set to DED516GBAU.maximumasp.com
along with HELO. Do you mean this cause a problem?

Deniz

You should be aware that most email transmissions are 'tested' for dns during the attempted delivery, and mail server programs routinely test all domain names found in the email headers so you may want double-check the dns for each domain name that will be passed in an email header. Having the domain name that is declared in the HELO statement resolve correctly now as you say is great as not not resolving is a common reason for terminating the attempted email delivery. If you are not experiencing problems with your email delivery then it appears you don't have an issue. Have you considered SPF records? It's a simple text record in the dns that declares an authorized list of email servers permitted to handle email for the respective domain names, easily included with your dns config. If you want to test your dns config with respect to email transmission and other RFC guidelines, try dnsstuff.com. Also, if you have a failover / backup email server then the same config issues are going to apply.
.

Relevant Pages

  • Re: sendmail problem
    ... This indicates that the receiving server did not like your HELO / EHLO name. ... excessive spam' and has returned a 'bogus helo'. ... This means that the sending email server connected to our email server ...
    (comp.mail.sendmail)
  • Re: SMTP Virtual Server Quit problem
    ... will bog down if someone tries to send an attachment over 10mb....with esmtp, ... As for Helo rather than Ehlo, doesn't the server revert back to helo if ehlo ... >> The SMTP server is not performing a DNS Blacklist check of any kind. ... >> I only get a single line stating 'Quit' for the dropped connection. ...
    (microsoft.public.exchange.connectivity)
  • Re: Cannot send email to Hotmail but I can to other domains
    ... You can try creating an SMTP Connector and on it say "Send HELO instead of ... EHLO" and see if that fixes the problem. ... > the recipient's email server. ...
    (microsoft.public.exchange.admin)
  • Re: Suddenly mails sent by IIS stop being delivered to hotmail accounts
    ... forward and reverse DNS records, their public reputations, and your ... the top level domain and not the FQDM of HELO the HELO FQDN was not ... but it creates more DNS traffic and there should be no reason to not ...
    (microsoft.public.inetserver.iis.smtp_nntp)
  • Re: Unable to complete SMTP "handshake"
    ... make sure their helo has a public dns entry. ... > email server. ... > have removed all black list sites. ... Our client changed IP address due to a service ...
    (microsoft.public.exchange2000.win2000)