SMTP problems

[phoogoo]

I have been having chronic problems with certain people receiving my emails. By my guess it appears to be certain people on certain networks who can't receive my email. Possibly a spam filtering issue. But if so how can I set up my email so it gets through.

This happens when I use either the virtual SMTP setting:

mail.DOMAINNAME.com

or my ISP's SMTP setting

i.e. smtp.comcast.net

Is there anything you know of that will resolve this please let me know.

[tomp]

Do you have a VDS? If so do you have reverse dns setup?

Tom

[phoogoo]

I am on a reseller account. Reseller 3 I believe.

[Jeff]

Hi,

Please see the following article from our Knowledge Base, which is located at our customer portal - http://my.myriadnetwork.com

General problems sending or receiving email
http://my.myriadnetwork.com/kb/questions.php?questionid=178

Please provide as much information as possible from that article in a ticket to our helpdesk, which can be reached either via the customer portal, or simply over email. Thanks.

[phoogoo]

Thanks for pointing me to that topic. The problem is that these emails never reach their recipient nor do they get bounced back to me.

There are certain recipients and entire networks that this happens with which is why I am assuming there is something about they way our mail servers are set up that certain networks don't like.

Can you please confirm the optimum way to set up SMTP?

[Jeff]

Without knowing the information requested from the Knowledge Base article, it's extremely difficult to even speculate on the issue. If you can send to some folks but not others, then everything sounds like it's set up properly on your end. In other words, there really is no optimal way to set up SMTP. When we create a new cPanel account, the MX record is added for the domain (e.g., domain.com), and a CNAME record for "mail" is pointed to the domain as well (e.g., mail.domain.com).

Note that I am only referring to how things are set up on our end. I'm not clear on whos SMTP server you're using - the one we provide with your account, or Comcast. For ours, you would use the instructions provided in the Welcome email, which state to use mail.yourdomain.com

If Comcast uses the format "smtp.xxxxxxxx" vice "mail.xxxxxxxx", then that's just how they have things set up in DNS. There is no smtp.yourdomain.com as hosted by us, unless you have made the change to the DNS zone from within WHM (this assumes you have a Reseller account, as regular webhosting accounts do not have access to modify DNS zones). edit: there is no advantage to doing this. The mailserver still performs the same functions regardless.

Also I'd just like to point out that the forums are really for presales, customer chat, howtos, contests, and things of that nature. While we will always be more than happy to provide assistance via the forums, it is important to note that you will always receive the quickest response times when contacting the helpdesk.