Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.



1295 posts

Uber Geek
+1 received by user: 9


Topic # 109752 25-Sep-2012 21:24 Send private message

Hi

I don't know a lot about my mail server as it is configured by my host. 
I have about 50 email accounts on the server from 25 different domains.

I have just tried sending messages from 8 domains and all the messages got marked as junk by Yahoo Xtra. It is becoming a real pain now as I often email @xtra.co.nz addresses.

I don't send any bulk mail and checking the logs for this month their has never been more than 30 messages sent a day.

I did a quick blacklist check here: http://whatismyipaddress.com/blacklist-check
and everything came back as clean.

What can I do to stop emails going into spam?

Create new topic
Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691380 25-Sep-2012 21:48 Send private message

Send me an email from the offending server and I'll have a look and comment.

You'll want to pm me the email address you're sending from as well because we'll greylist you on your first send but I'll still be able to see what's going on.

D




Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]


BDFL
49909 posts

Uber Geek
+1 received by user: 4621

Administrator
Trusted
Geekzone
Subscriber

  Reply # 691386 25-Sep-2012 22:05 Send private message

Their server could be checking SPF records to see if your servers can relay emails from your domains. Also if your server identify itself with one name, but the reverse DNS does not give the same name then it may mark as "non reliable" source... Lots of things can be happening.




Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691392 25-Sep-2012 22:12 Send private message

freitasm: Their server could be checking SPF records to see if your servers can relay emails from your domains. Also if your server identify itself with one name, but the reverse DNS does not give the same name then it may mark as "non reliable" source... Lots of things can be happening.


ya, he doesn't have an spf on the offending domain, but the ptr record doesn't look friendly.

I'm just waiting for his server to retry to see what my SA and antivirus do with it.

The helo record also doesn't look that friendly either.






Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]


3015 posts

Uber Geek
+1 received by user: 196

Trusted
Subscriber

  Reply # 691394 25-Sep-2012 22:16 Send private message

TBH I think they usually just check that there is indeed a PTR rather than its contents???





Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691395 25-Sep-2012 22:19 Send private message

http://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

Yip, the HELO should be a FQDN I suspect.

So, so far you've got three strikes...

No SPF, no FQDN in the HELO field and a PTR that doesn't match the ns server domains or the FQDN at all.

Will be interesting to see if my server will like you.

When the server retries after being greylisted we'll find out if you're in any spam databases as well.

D




Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]




1295 posts

Uber Geek
+1 received by user: 9


  Reply # 691400 25-Sep-2012 22:23 Send private message

Thanks for all your help so far. It doesn't sound to good for my mail server.
Most of these things are over my head but I am on wikipedia now :)

Are these things I should try fixing myself (I have full access to the VPS) or should I ask my host to help me out (they are usually very good)?

Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691404 25-Sep-2012 22:30 Send private message

Zeon: TBH I think they usually just check that there is indeed a PTR rather than its contents???


In my config I don't think I even care any more if you have one, but I know Yahoo can be a little less friendly than I am with what it accepts.






Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]


Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691405 25-Sep-2012 22:35 Send private message

jbard: Thanks for all your help so far. It doesn't sound to good for my mail server.
Most of these things are over my head but I am on wikipedia now :)

Are these things I should try fixing myself (I have full access to the VPS) or should I ask my host to help me out (they are usually very good)?


At a guess I'd say qmail on your vps is not very well configured.  You could start by just reading the conf file and using some judgement about what the settings should be.

You'll need to talk with your provider about setting a decent PTR record, which needs to be the same as the FQDN set for your MX record.

I've emailed you back, it would help if I could see one of these messages that Yahoo has flagged as spam to see what the headers say.

(If you're forwarding it to me, remember to do it with something that will include all the message headers)

Setting a basic SPF record might help too, but then you'll have to ensure that users actually use your server to send from or those of us who do actually validate SPF records will reject anything not sent from your server.

Personally I don't set SPF records at all, but I do check them on some of my systems.






Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]


Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691406 25-Sep-2012 22:39 Send private message

http://faculty.cs.niu.edu/~rickert/cf/bad-ehlo.html

Yip, I'll lay odds your HELO is catching you.




Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]




1295 posts

Uber Geek
+1 received by user: 9


  Reply # 691412 25-Sep-2012 22:54 Send private message

DonGould:
jbard: Thanks for all your help so far. It doesn't sound to good for my mail server.
Most of these things are over my head but I am on wikipedia now :)

Are these things I should try fixing myself (I have full access to the VPS) or should I ask my host to help me out (they are usually very good)?


At a guess I'd say qmail on your vps is not very well configured.  You could start by just reading the conf file and using some judgement about what the settings should be.

You'll need to talk with your provider about setting a decent PTR record, which needs to be the same as the FQDN set for your MX record.

I've emailed you back, it would help if I could see one of these messages that Yahoo has flagged as spam to see what the headers say.

(If you're forwarding it to me, remember to do it with something that will include all the message headers)

Setting a basic SPF record might help too, but then you'll have to ensure that users actually use your server to send from or those of us who do actually validate SPF records will reject anything not sent from your server.

Personally I don't set SPF records at all, but I do check them on some of my systems.




Thanks for all your help. I will get onto this first thing tomorrow and post back if I have any problems.

I will forward you a Yahoo email now.

1743 posts

Uber Geek
+1 received by user: 337

Trusted
Spark NZ

  Reply # 691887 26-Sep-2012 20:04 Send private message

If you're still having issues feel free to e-mail me pl at telecom dot co dot nz and I can look into it too.

But lack of SPF would normally be the clincher.  Plus not the right server name in the HELO/EHLO.




I work for Spark, but as always my views are my own.

Have plan, send $NZD50m
3475 posts

Uber Geek
+1 received by user: 75

Subscriber

  Reply # 691892 26-Sep-2012 20:19 Send private message

plambrechtsen:  But lack of SPF would normally be the clincher.


Really?  That's just silly.

Victoria University failed SPF checking last week because of a dependency on Microsoft.

Does Yahoo really look at SPF and fail you if you don't have a record configured?

No, that can't be right, my mail server sends messages to xtra customers all the time (well I'm assuming it does because I don't get calls from people telling me it doesn't, I can't say I stop to look at the mail logs unless someone complains).

I can understand failing messages if you do have an SPF configured and then the record causes a failure, but rejecting mail for not having an SPF?

Or have I just misunderstood?

D





Promote New Zealand - Get yourself a .kiwi.nz domain name!!!

Check out mine - i.am.a.can.do.kiwi.nz - [email protected]


Create new topic




Twitter »
Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





Trending now »

Hot discussions in our forums right now:

Snap have failed our company!
Created by dafman, last reply by kornflake on 21-Oct-2014 23:04 (23 replies)
Pages... 2


American legal jurisdiction in New Zealand
Created by ajobbins, last reply by gzt on 21-Oct-2014 14:58 (30 replies)
Pages... 2


Another Trade Me competitor: SellShed
Created by freitasm, last reply by SellShed on 22-Oct-2014 10:26 (40 replies)
Pages... 2 3


Overcharged by Slingshot for months - warning to existing customers
Created by dusty42, last reply by richms on 21-Oct-2014 19:15 (27 replies)
Pages... 2


Why would Suresignal calls be worse quality than non-Suresignal calls from the same location?
Created by Geektastic, last reply by froob on 21-Oct-2014 08:21 (41 replies)
Pages... 2 3


Spark Socialiser
Created by freitasm, last reply by Flickky on 22-Oct-2014 10:26 (25 replies)
Pages... 2


Just bought a TiVo online. No wireless adaptor. Will a standard one work? Or do I need the TiVo one ?
Created by Limerick, last reply by graemeh on 20-Oct-2014 16:03 (11 replies)

Spark Socialiser and new plan
Created by saeran, last reply by eXDee on 21-Oct-2014 21:52 (10 replies)


Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.