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After changing to a new ISP did you change the mx record?
Did you give adequate time for the change over?
What happens if you telnet your domain name on port 25 from the outside?
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Cannot Receive Email after ISP change over
Hey all, once again im in a bind because of DNS settings. I recently changed over to a new ISP. After switching over and making all necessay changes to the Watchguard, I am unable to receive emails. Im almost 100 percent sure it as something to do with DNS but I can really use some help on this.
Thanks
Manny
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Answers
Is the publically published DNS MX record definitely pointing to the right place since you've moved?
Try checking from here:
http://www.all-nettools.co
BTW, was that a deliberate DNS pun in your first sentence?! :)
Check your new IP address on www.whatismyip.com and then change your Domain's DNS MX record to the same IP and wait 24-48 hours for the IP to replicate around the world and you should be fine.
Check you new IP on www.mxtoolbox.com/blacklis
Make sure you also change your SPF record (assuming you have one) to reflect your new IP address, or if you don't already have one - visit http://old.openspf.org/wiz
this is what my dns settings look like on network solutions.
- Untitled.jpg
- 101 KB
dns settings
This is what I see for mx records:
10 eaglebrands.com.s8a1.psmtp
20 eaglebrands.com.s8a2.psmtp
30 eaglebrands.com.s8b1.psmtp
40 eaglebrands.com.s8b2.psmtp
50 mail.eaglebrands.com 174.141.49.100 7200
Notice that the mail.eaglebrands.com is the last priority meaning its only going to hit there if the other 4 fail.
Are you using a postini device or something in the middle?
If you are not meaning, and you are trying to go direct, then that needs to be moved to 10.
That being said, I am not getting a responce on that IP, so something is still off, most likely on your router.
Give me a little more on your set up.
You have 5 IP's setup for your domain - all pointing to the same address range.
Your 5 MX records are:
10 eaglebrands.com.s8a1.psmtp
20 eaglebrands.com.s8a2.psmtp
40 eaglebrands.com.s8b2.psmtp
50 mail.eaglebrands.com. [TTL=7200] IP=174.141.49.100 [TTL=7200] [US]
30 eaglebrands.com.s8b1.psmtp
Do you really need 5?
Mail.eaglebrands.com is the only one that does not respond.
ERROR: I could not complete a connection to one or more of your mailservers:
mail.eaglebran
Your mail server is apparently called Postini and not what the MX record is pointing to.
WARNING: One or more of your mailservers is claiming to be a host other than what it really is (the SMTP greeting should be a 3-digit code, followed by a space or a dash, then the host name). If your mailserver sends out E-mail using this domain in its EHLO or HELO, your E-mail might get blocked by anti-spam software. This is also a technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname given in the SMTP greeting should have an A record pointing back to the same server. Note that this one test may use a cached DNS record.
eaglebrands.com.s8a
eaglebrands.com.s8a2.psmt
eaglebrands.com.s8b2.psmt
eaglebrands.com.s8b1.psmt
You don't have an SPF record setup:
Your domain does not have an SPF record. This means that spammers can easily send out E-mail that looks like it came from your domain, which can make your domain look bad (if the recipient thinks you really sent it), and can cost you money (when people complain to you, rather than the spammer). You may want to add an SPF record ASAP, as 01 Oct 2004 was the target date for domains to have SPF records in place (Hotmail, for example, started checking SPF records on 01 Oct 2004).
Are you planning to use postini or get mail delivered directly?
Currently, most mail will go via postini and if that is the case, they need to know the new IP address you are on to send you your mail.
If you want to receive mail direct, lose the postini MX records and just have your direct IP address.
all mail should go through postini to filter the junk mail then hit the exchange. the only reason i have the mail.eaglebrands.com is because i thought i needed it for reverse lookup. I use to be able to it https://eaglebrands.com/ex
Eaglebrands.com currently points to IP 209.62.20.200 which is why you cannot use https://eaglebrands.com/ex
Somewhere in your DNS settings you will find this IP address - change it to your current one and that will work.
Have you told Postini of you new IP Address?
Reverse Lokup only checks your IP address to see what it setup. If you set your reverse DNS up as Eaglebrands.com and change the 209.62.20.200 IP address to 174.141.49.100 in DNS, you can lose the mail.eaglebrands.com MX record and then you won't get spam sent straight to your server.
The current Reverse DNS pointer for your ip is:
Answer:
174.141.49.100 PTR record: 174.141.49.100.nw.nuvox.ne
So call your ISP quickly and ask them to change it as it is left-over from the previous owner or is your new ISP. Ask them to set it up as eaglebrands.com and track down that 209.62.20.200 IP and change it. Then all will be well.
When ever you change an ISP or Public IP details are below.
Have you created a new MX or you are using an old MX?
If yes, you have create a new MX in that case need to take a time at list 48 hour to resolve a MX ,PTR,A record in all root domain.
Have you create a PTR record in new ISP?
You can also check an nslookup Public DNS and Exchange Public IP resolved or not.
You can also verify your telnet port 25.
http://www.mxtoolbox.com/
If you have not told Postini - then they will probably be trying to deliver your mail to your old IP address.
Give them a call asap - assuming they are a 24-hour organisation, and they can then change the IP address they have for you to your new one.
Don't forget to setup an SPF record. Some mail outbound will fail without an SPF record.
You are not currently blacklisted:
http://www.mxt
Okay - to summarise:
- Call Postini and tell your new IP
- Setup an SPF record via http://old.openspf.org/wiz
ard.html and publish the record in your Domains DNS records (add a TXT record) - Change your DNS to modify IP 209.62.20.200 to174.141.49.100.
- Delete the MX that points to IP 174.141.49.100
- Call your ISP and ask then to setup your Reverse DNS record as eaglebrands.com
Read your emails when they come in!
See the attached
- Eaglebrands.jpg
- 55 KB
Eaglebrands DNS Records
Now I'm seeing this:
- Eaglebrands.jpg
- 62 KB
Eaglebrands DNS
looks like theres a delay. and i still cant go to https://eaglebrands.com/ex
Whilst the IP 209.62.20.200 is still hanging around, the https://eaglebrands.com/ex
In terms of delay - there should not really be any delay now that you changed your IP on Postini.
I'm surprised about hotmail - were you getting them before?
Postini may take a while to update their records - not sure how they function, but it might be this that is causing the intermittent mail.
Hold that thought.
You only have 1 MX record now and thus no mail will hit you as you removed the Postini records.
You need to add them back or open up your IP restrictions on your SMTP Virtual Server.
In case you need a refresher:
10 eaglebrands.com.s8a1.psmtp
20 eaglebrands.com.s8a2.psmtp
40 eaglebrands.com.s8b2.psmtp
30 eaglebrands.com.s8b1.psmtp
ok i got the email working. however i still cannot get to https://eaglebrands.com/ex
No; but you can access it by https://mail.eaglebrands.c
As far as the active sync, test it here and let me know the results.
https://www.testexchangeco
Windows Mobiles will take about 48 hours to wake up as the Airtime Provider has to pick up the DNS changes. Come Monday / Tuesday - they should be working again without intervention.
You still have the 5 MX records - not a major problem and it will help your OWA access until you can lose the rogue IP address in your DNS. which is still there.
Attempting to Resolve the host name mail.eaglebrands.com in DNS.
Host successfully Resolved
Additional Details
IP(s) returned: 174.141.49.100
Testing TCP Port 443 on host mail.eaglebrands.com to ensure it is listening/open.
The port was opened successfully.
Testing SSL Certificate for validity.
The SSL Certificate failed one or more certificate validation checks.
Test Steps
Validating certificate name
Certificate name validation failed
Tell me more about this issue and how to resolve it
Additional Details
Host name mail.eaglebrands.com does not match any name found on the server certificate CN=eaglebrands.com, CN=companyweb, CN=EAGLE1, CN=localhost, CN=EAGLE1.eaglebrands.loca
Manny - Re-run the Connect To The Internet Wizard and change nothing apart from the Certificate option where you should generate a new certificate using mail.eaglebrands.com as the name. This should solve the Activesync problem, but you will still have to wait for your Airtime provider to catch up with the DNS changes.
Start> Server Manager> To-Do-List> Connect To The Internet.
There were 5 MX records before the change and Activesync was working. There are still 5 MX records and they have not changed in any way. Activesync must have been using mail.eaglebrand.com to work and this will not have changed.
Activesync won't work via Postini - so it has to have worked direct to the SBS server before the ISP change - thus it should continue to work once the IP has been replicate in DNS around the world and the Airtime Provider picks up the changes.
Just thinking about what you have said a little....
It cannot have worked on Eaglebrands.com as that will try to connect to the rogue IP you have in your DNS - so it has to have been using mail.eaglebrands.com, in which case your certificate is wrong and thus you need to re-run the Wizard previously suggested to create a certificate with the proper name on.
Re-test on https://testexchangeconnec
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by: manny_lenisPosted on 2009-09-26 at 09:39:09ID: 25430289
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