For several days now, domains on my server are having *some* mail from groups.yahoo.com bounce. Yahoo reports "Mail server for "[xxx]" unreachable for too long" (the xxx is in their bounce at times, other times it shows the proper domain). Of course they say it's not them, but I can find no problems on my server. My mail logs show incoming mail all the time, and my server is running WAY below capacity in every way. I have tracked two messages sent from yahoo within seconds of each other, one went through, the other had the error above.
I have no problem getting mail from groups.yahoo.com to e-mail that does not run through the server.
Any idea why this is happening? Any know issues with groups.yahoo.com? I am pretty sure it's them - last week all mail sent to yahoo e-mail accounts bounced 550 - relaying denied.

Thanks for any help.
<>< Paul

Same exact problem here, any suggestions?

Reverse DNS is working fine.

This has happened to me a few times, eventually they send you a message to reactivate your Yahoo Groups account.. but it's frustrating to miss any messages that are sent out while you are de-activated.

But it is happening consistantly for the last 2 weeks, and has never done it before.

NH

These are soft bounces, so the accounts do not require resetting. But as Noel said it's been going on for some time now. It ranges from 20% to 90% of mail not getting through. I have more than 2 dozen users on 4 domains who are having this problem.

Anyone know of a program I can run on a local Linux box that will ping the mail server on the RS server? At least then I could confirm it's "not me" or RS.

Ok, I am running a ping program now from home. I am pining (among other things) my main server IP, the IP number for the domain, and NS1.RACKSHACK.NET and NS1.RACKSHACK.NET once a minute.
Over the last 14 hours neither the server nor the domain has missed once. NS1failed once, but was good on a retry 15 seconds later. During the same time period a number of e-mails from groups.yahoo were not sent because they report the mail server was not available for too long.

Based on this, am I right to say that the problem is definitely not with my server or RackSkack?

To close this out -

What ever was wrong has corrected it's self now. I suspect that the Yahoo servers were only making one attempt to connect - if that failed the mail was dumped.

BTW, the official answer from RS was:

Mine is still doing this, and further more I am not getting alot of other emails as well. I had a tech watch the logs as I sent a test post from yahoo groups, the message showed up immediately in the logs but was nowhere to be found in the user's mailbox.

NH

I am having the exact same problem. I originally thought it was people who tried to use one of my mailservers as a relay, but now my account at Yahoo seems to be disabled as well. Very strange. I'll check to see how many are bouncing on my server. I run my own nameservers btw, so it cant be RS's nameservers being the problem.

Found it!!!

http://forum.rackshack.net/showthread.php?...=&postid=118895

Now if we can get rackshack to fix it!!

As I posted on the other thread all yahoo IPs now work from my server. Ongoing problems must have some other cause. Groups.Yahoo stops sending ANY messages once it lists your e-mail as bouncing - you must request a reactivation from them and then reply to it when it arrives to restart mail. Go to <http://groups.yahoo.com/mygroups> and click the bounce warning message center top.

This is getting really annoying its happening again - submitted a ticket and yahoo groups was blacklisted again.

How can rackshack blacklist yahoo groups - the sheer size of them is massive and has a roll on effect that is massive.

yahoo groups have problems all over the world. It's not JUST RS or anyone else. My ISP hadn't been blocking very many places until recently and even before we had problems. AOL doesn't block much, if anything, and aol users weren't getting their mail. It's a problem with yahoo, or else hundreds of ISPs and hosts are blocking yahoo all over the world. It WOULD be nice if yahoo tried to have some control over their email accounts, to prevent the sheer amount of spam they have customers sending from their accounts, but I don't think that's the root of the problem.... somewhere it's got to do with something on their end.

The issue here is NOT Yahoo e-mail accounts, it's Yahoo's e-mail lists from groups.yahoo.com. Totally different mail servers. And I can tell you that groups takes spam reports very seriously they have been know to shut down a group without ever contacting the group owner. They are not completely an opt in, but you can set it up so you can't be added to groups, and you will get an e-mail with an unsub link if you are added by a list owner.

RS HAS blocked mail from Yahoo Groups, RS staff has verified it. Current problems may or may not be RS, as Yahoo has a lot of problems with group mail. If they are black listed it must be very limited, as I am not having a problem with any of my users. I just tried several of the groups mail servers with ping and had no problem. If you want to find out if it's RS or not, ping n1.grp.scd.yahoo.com to n40.grp.scd.yahoo.com from your server.

Apparently I did not state myself clearly enough. Yahoo's email and their group emails likely go through some of the same servers. The spam their email customers send out cause yahoo servers to be blocked by some people, which does affect the e-groups mail. However, while RS has blocked some of their servers, it is not the sole problem with regards to the email not getting where it is supposed to go. We have members all over the world on our lists (I at one point ran 13 at a single time with something like 800 members total at the peak, but am now only running 5) and 98% of them report problems getting their mail. Now you can't tell me that 98% of them are all on RS servers, I know better. It's not JUST RS that is the problem here, it's yahoo itself. Even before some of their servers were blocked, they still had problems with email not getting where it was supposed to.... this is going back 3-4 years at least. Accounts were bouncing for no reason, members weren't getting emails...... it's only worse now than it was then..... but again, it's not just RS... it's something on yahoo's end, and has been for a very long time.

The groups aren't typically shut down for spam, they are usually shut down for copyright or other illegal content, such as warez. Not saying it doesn't happen, it's just not often. This is from yahoo, whom I have unfortunately had to speak with on a number of occassions due to one of the organizations I run dealing with copyright infringements.

It's different serves completely. I know some sys-ops get sloppy and just black list a whole range of IP #s, but that is bad practice.
And as suggested before, it would be real nice if RS told us what was being blocked and gave us the option to bypass the block - especially if they are going to block legitimate servers that many people want to get mail from.

<>< Paul
"-rw-rw-rw-" ... file permissions of the beast.

I can't understand why they cant whitelist it though

Spews has listed all the Groups.Yahoo mail servers - so this is probably hurting a lot of folks. I think the groups servers do not run any other mail ... so this may be a case of over zealous blocking.