xtra's mailservers are blacklisted.

Forums › Spark New Zealand (including Skinny and BigPipe) › xtra's mailservers are blacklisted.

mwalford

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#56890 27-Jan-2010 18:53

Is anyone else having problems with mta01.xtra.co.nz and mta02.xtra.co.nz mailservers being listed on international DNSBL blacklists?

Just using mxtoolbox.com and they return listings.

I have a case open with Xtra's "Complex" technical support and wouldn't mind input from other people who use DNSBL's that are failing to receive mail being sent from mta01 and mta02.xtra.co.nz.

mwalford

49 posts

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#293597 27-Jan-2010 19:31

Turns out Yahoo is also listed in SORBS
IP Address 124.108.96.191 n2b.bullet.mail.aue.yahoo.com

Ragnor

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#293642 27-Jan-2010 21:27

Happens all the time to ISP mail servers... presumably due to users on that ISP being infected with malware and being used as a zombie spam bot.

Vofadone's where blocked a couple of months back if I remember rightly.

Doesn't take much to get unblocked.

Kyanar

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#293682 27-Jan-2010 22:35

Everyone's listed in SORBS. No sane administrator uses it.

mwalford

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#293692 27-Jan-2010 22:53

Thanks for your comments.

I wouldn't go so far as to infer people using SORBS are insane, considering they weren't listed there yesterday. Or the day before.

There are a number of people obviously still using it as a blacklist provider. Systems like these work best when problems are detected adn then rectified.

insane

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2degrees

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#293700 27-Jan-2010 23:13

As part of my job I track down spammers and get them blocked off as soon as possible to ensure our mail servers don't get listed but even with the best email filtering appliances some do get through. Typically it always happens at some ridiculous time in the morning and by the time you pick it up when you get to work it can be all but too late.

Getting off the lists is normally pretty easy but sometimes it can still take a day which is a very long time when your helpdesk is taking heat by affected users.

It happens to everyone at some point unfortunately, and here to Xtra despite how much they have locked their systems down.

mwalford

49 posts

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#293702 27-Jan-2010 23:18

Thanks "insane" that's a helpfully reassuring comment. Nice to see these instead of comments that aren't. Appreciate your work.

HP

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Ragnor

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#293722 28-Jan-2010 01:34

The true moral of the story is that email is not as a reliable delivery mechanism as people think.

Kyanar

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#294234 29-Jan-2010 07:31

mwalford: Thanks for your comments.

I wouldn't go so far as to infer people using SORBS are insane, considering they weren't listed there yesterday. Or the day before.

There are a number of people obviously still using it as a blacklist provider. Systems like these work best when problems are detected adn then rectified.

Generally speaking, everyone I've ever met who used SORBS no longer does. Mostly because they operate an extortion approach to delisting. If you are picked up for being dynamic, the admin requires you change your reverse DNS to comply with an RFC he/she wrote which was rejected. If you are picked up for spamming (or a former occupant of your address space was) then he/she requires that you pay a "donation" to an "approved charity". Yes, even if it was a former occupant of the space and you just got assigned it. He/she says that "you should be more careful next time".

old3eyes

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#294244 29-Jan-2010 08:38

This was one of the main reasons we ditched Xtra years ago. They were on the Orbs black list and we had problems receiving email from people..

Regards,

Old3eyes