mx-record

来源： https://stackoverflow.com/questions/15240952/java-dnslookup-mx-record-list-like-mxtoolbox

来源： https://stackoverflow.com/questions/15240952/java-dnslookup-mx-record-list-like-mxtoolbox

问题 I host a spread of different domains that all use my (one) mail-server to send and receive mail. When sending mails, sometimes, my mail gets rejected by the receiving end, marked to the recipient as "suspicious" or simply heads straight for the spam folder. Also, on the inbound, I get a load of "return receipts" from random victims of spam, where one of my domain names has been used even though the mail never touched my mail server. I have been told, that both issues stems from the fact, that

问题 I try to use this dll: http://www.eggheadcafe.com/articles/20050129.asp but not working. i always get timeout when running it. Anyone know any good dll or C# example how to check if DNS MX for mail exist? code: private static bool CheckDnsEntry(string domain) { string[] dnsServer = DnsMx.GetMXRecords(domain); if (dnsServer.Length > 0) { return true; } return false; } string[] emailparts = email.Split('@'); if (CheckDnsEntry(emailparts[1]))... ERROR: Server Error in '/' Application. Connection

问题 How to, using PHP, ping an SMTP server and check MX records? I'm willing to write a script such as the one that can be found on http://bit.ly/z4RE I've used aaa@mailinator.com as the test mail and this is the result in more human-readable format: Result: Ok Log: MX record about mailinator.com exists. Connection succeeded to mailinator.com SMTP. 220 mail.sogetthis.com ESMTP Postfix > HELO verify-email.org 250 Hello > MAIL FROM: <check@verify-email.org> =250 OK > RCPT TO: <aaa@mailinator.com>

问题 My DNS has a set up for the domain base.com that consists of A and MX records. There are several other domains that are set up with CNAME records, pointing to base.com. Do I need to set up anything special (like extra MX records) for the CNAME domains, or will the CNAME records also forward any MX requests. Example: Will an email sent to info@otherdomain.com be delivered correctly to the MX of base.com if these (and only these) DNS records are in place: ; A and MX set up for base.com base.com

问题 I have started using Zend_Validate_EmailAddress with the mx and deep options set to true. I think I am getting some false negatives when it comes to MX records that have IP addresses in the reserved IP ranges. A good example is the MX records for harn.ufl.edu. It appear that it's failing because of IP addresses in the 128.0.0.0/16 range. It does however have one record that uses 8.6.245.30, which is not in the reserved range. Another example is the MX record for martinhealth.org. It's MX

问题 I need to create a tool that will check a domains live mx records against what should be expected (we have had issues with some of our staff fiddling with them and causing all incoming mail to redirected into the void) Now I won't lie, I'm not a competent programmer in the slightest! I'm about 40 pages into "dive into python" and can read and understand the most basic code. But I'm willing to learn rather than just being given an answer. So would anyone be able to suggest which language I

问题 I want to implement bulk availability checking of .co.za domain names as accurately as possible by checking for the existence of SOA or MX records using C# ASP.NET. I am looking for a solution that can check for the relevant DNS records in a way that properly utilises threading to check at least 10 domains at a time. "Why don't you just use an API?" The only truly accurate way of checking the availibility of a .co.za domain is to use http://co.za/whois.shtml, but the archaic WHOIS service

问题 From the phpmanual, the getmxrr( get mx record) is a bool value, it is true if the record exist. However, i would like to get more information about the mail domain, for example: A simple mx lookup record (hotmail) is like this: Pref Hostname IP Address TTL 5 mx1.hotmail.com 65.55.92.152 60 min 5 mx2.hotmail.com 65.55.92.152 60 min 5 mx3.hotmail.com 65.54.188.110 60 min 5 mx4.hotmail.com 65.55.92.136 60 min Can i obtain the above information using getmxrr? Thank you. 回答1: Second parameter