I'm hoping someone here has a bit of advise for me. It's late and I apologize if I'm posting this in the wrong forum.
I'm having a hard time with email from site "A" reaching site "B" (and also "C"). Site "A" is actually a paid service. We never had any problems with getting the email from "A" until just over a month ago. "A" blames the place that has "B". "A" says their logs show the emails as going out, but they are being blocked. The host for "B" says the emails are never making it to the server. I've been going back and forth on this for over a month now with both of them.
Emails from "A" seem to be able to reach any other isp in the country, except for the two domains hosted by "B". There are some days where someone at "B" will say they have changed a setting on the firewall. Oddly enough when "B" changes some sort of setting on the firewall, the emails from "A" get through for about a day or so. Even old emails that are two days old arrive. Then you have days like today where all I get is "I have tested this for you in the past. It is not a problem with our server. The email simply never reaches our machine. You will need to have this resolved by "A" "
I admit I'm not much of a technical person at all and have a lot to learn, but when the email works after a change has been made by "B" doesn't that point to a problem with "B", although they say there is no problem with their machine?
Without headers of the messages being bounced back to provider a, cant really be sure what the problem is. Get some of the bounced messages (headers and all) and if they are indeed being bounced back from the other provider, forward them to them.
I would be suprised if their firewall has anything to do with it. Firewalls can block ports (like 25, 110 etc...) but if they did that then that would prevent all email getting to them. They cannot block particular emails to certain addresses with the firewall.
I think if it's being going on a month and they push you aside and blame it on A then it might be time to move domains from B to A or even D.
I will admit that email problems can be a pain to resolve some times when these issues happen as it requires searching through log files trying to track it down. With a little bit of time spent it's always possible to track down the issue though. Sometimes it just needs cooperation on both sides though which should happen with a paid host for sure!
It could be blocked one of the servers spam prevention methods if any are employed. You'd be able to get around this by perhaps using your ISP's SMTP server for the time being. I'd also suggest investigating the IP's of the mail servers and sending the information to the hosts involved: http://www.dnsstuff.com/tools/ip4r.ch?ip=
Also you could have the hosts investigate why the mail is being stuck in their mail queue rather than being sent to your inbox. This could be really any number of issues, and its really hard to provide a solid answer without any further proof etc.
Thank you all for the information. After going back and forth with our host during the overnight hours and all day today, yesterday's mail from "A" just started showing up a few minutes ago. When the mail started coming in we asked "B" what they did. This is the response....
"I have done what have always done in the past, reset the firewall. Sometimes it seems to work and other times it does not. I am going to leave APF disabled. Please reply to this ticket when you have this problem again."
I'm sure tomorrow when it has stopped again we'll be back to the "It is not a problem with our server".
I think it's time to leave B if they are going to leave APF disabled (unless they have another firewall in place).
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Oddly...I have not had many clients with email problems. I have had problems myself...and most of the time it's the ISP. Earthlink..at any given point...may or may not block port 26.
You complain about godaddy...but...I have a few things there...and have had no problem relaying email through them.
I think we are going to see more of this. Upstream providers are really putting pressure on hosts to do more to prevent users from sending spam. I have never had a problem relaying through the ISP's mail server, tho.
Definitely switch B (and C) to a different host. It is obviously their firewall, and if they are unwilling to go any further to assist in finding the root cause of the firewall issue and would rather just turn it off entirely, doesn't bode well for the future. I hate lazy support people!
Well..I hate to tell you...you going to be hating a lot of support people, then. It seems a habit..once they start..they do it all the time. It's the easiest thing to do...so...that's what they do.