e-mail forwarding (NOT)

[dspanogle]

Question: are there some magic algorithms used by hosting companies that will prevent e-mail forwarding in some cases or at some times or, depending on the source of the e-mail?

Any e-mail server/hosting gurus out there? I currently host at another company and have e-mail forwarding problems. Before I give up and move to BH, I would like to make sure I am not causing the problems.

I have two separate hosting accounts at otherhost.net.

Account1 at otherhost.net always forwards all e-mails to any email box that is set up to forward - from any/all sources.

Account2 at otherhost.net 'mostly' forwards e-mails from various sources but randomly does not forward e-mails that arrive in email boxs set up to forward.
In all cases the mail arrives in the box setup to forward but:
In one case, I mail (using Outlook Express) from aaa@account1 to bbb@account2 (bbb@account2 is setup to forward to anywhere@anyaccount.) The message arrives at bbb but is never forwarded!
In another case, I mail (same Outlook Express, same PC) from xxx@account1 to bbb@account2. This one arrives at bbb and is forwarded.
In another case, I mail (using webmail) from aaa@account1 to bbb@account2. This arrives and seems to always be forwarded.
Finally: A customer mails to bbb@account2. this always arrives at bbb but sometimes is forwarded and sometimes NOT.
Support at otherhost.net can not duplicate the problem and are not helping-even after I got management involved. My customer's emails are randomly not being forwarded and I am totaly perplexed.
I need to have problem resolved, understand why or ...move to BH. but don't want the same problems at BH.

Sheding light on this would be helpful.

Even if you can point me to a reference site to learn about this would be great.

Thanks

[dvessel]

It looks like the mail headers that are attached from Outlook Express is preventing the forward. Customers using the same mail client is most likely causing the same issue.

Why it's doing this I have no idea but what you can do is to look at the headers of the mails that were sent from the web mail client and outlook. Compare and look for any differences.

And you said Account1 works perfectly fine? Look at how you set it up and compare it with the problem account.

hope this helps. Good luck.

[dspanogle]

Yes I figured the answer is somewhere in the headers. I set up both accounts and emails at both accounts the same - all default stuff, nothing unusual and no differences I know about.
I thought? - that's what I get for thinking :) - support at otherhost.net would have researched the headers and account setups to help solve the problem. They have not provided any help re header content even though they have full access to every mail that forwarded and did not forward.

Well, I know you can't help much more without the details and it is not a BH problem so.. I will just keep plugging away with support at otherhost.net until fixed or until I give up ... and move to BH.

Thanks for the reply