Emails getting bounced all over the place!

[saskiastrick]

Hi all,

I recently changed isp's from Adelpia to Verzion DSL and noticed that an unusually high amount of email's I am sending out are bouncing back.
All with differing error messages.

I resend some from a Yahoo account instead of the email address I have from my domain name and those got bounced too, same error message.

I am assuming my isp has something to do with that? Would the isp be blacklisted because a lot of spam originates from there? Or is there another reason?

Can my domain be blacklisted?
I am not a spammer whatsoever and rely heavily like everybody else on email to get business done.

What can be done? How do I investigate this?

Thank you!

Saskia

[Rugles]

>>>Can my domain be blacklisted?

Your mail server can be black listed, and probably is. This has happened to my company several times, and it sucks.

Couple of questions to you...

Have you been sending out spam, or anything someone might call spam?
Do you share a mail server with other companies?

Answering these two questions will start the process to get un-banned.

[saskiastrick]

Hiyas,

Thank you for replying!

No we do not spam at all. We only send quotes that people specifically have requested.

I may indeed share a mail server.
( I am sending info on that in a sticky so as not to post a url here)

thank you

saskia

[larryhatch]

Saskia: I began to suspect something similar when messages to [e-mail] could not
get thru. I checked with my dial-up ISP and found that my site host ISP was blacklisted on the
major list (Spamhaus and similar).

A Google search for just the name of ISP HOST turned up lots of other black-hat dirt.

I signed up with another ISP, similarly checked and apparently clean. I actually got better
service (larger bandwidth etc.) for slightly less money! No complaints here. - Larry

[herb]

Most Verzion DSL lines have dynamic a address.

SORBS:
dnsbl.us.sorbs.net/cgi-bin/lookup
Seems to be blocking every dynamic Verizon DSL IP address

They believe spam can't be traced back to a dynamic address and have often blacklisted the entire range.

[doublespeak]

Some of the spam blockers will blacklist anything known to be a dynamic IP, since the amount of spam through them will far outweigh the volume of legitimate mail. It's another reason why spamlists are both effective but also flawed since they always end up blocking an amount of genuine communication.

[rogerd]

One other possibility is retribution - I've found verizon.net to be almost impenetrable to legitimate forum emails, like membership confirmations. Perhaps some ISPs are blocking verizon as a means of getting their attention.

Some ISPs are quite odd. One ISP/web host we work with banned a huge chunk of AOL at one point. They detected spam from a set of AOL IPs, so they just blocked a massive range. When I pointed out that our clients were no longer able to get emails from their customers, the ISP claimed it was AOL's problem, and their action was perfectly appropriate. We were in the process of getting ready to cancel several contracts when they sheepishly backtracked & unblocked AOL.

[fiu88]

Is it just your personal IP your sending from getting blocked?
What about the relay source ( your website)?

This beginning to concern me as I've noticed my Yahoo DSL mail IP comes back as " Listed" when doing a whois DNS search....