Getting Sendmail to work with Rogers and Smarthost settings

I didn’t do this myself so I can’t vouch for it, but there was a recent discussion on one of the mailing lists I’m on about getting Sendmail to work with Rogers Smarthost settings.

Apparently this howto:

Will get you going, but there is one critical change you must make as determined by the Hugo on the mailing list.

Don’t forget to use in authinf and not!

Also, if you want to use an external authinfo file, add this to your file.

FEATURE(`authinfo’, `hash -o /etc/mail/authinfo.db’)dnl

Again, I didn’t try this myself, but I know some of you use Rogers and this may come in handy.

Another Reference on SMTP and Rogers Smarthost with Sendmail is here.


  1. Hi Matt,

    Thanks for the link. I used my setup with rogers without problems for a few months before switching to another service provider due to what I feel was very bad customer service (I am with Teksavvy now – definitely recommend).

    Did Hugo mention why he recommended using over the others listed at ?

    Ash Christopher

  2. Hi Ash,

    I believe it was from the additional information post at the bottom of the article. They mention in the posts there:

    Nov 2 11:53:56 pbx sendmail[2917]: mA2Gru4B002915: to=, ctladdr= (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=120318, [], dsn=5.0.0, stat=Service unavailable

    The delivery attempt went to the server

    So, I’m assuming that while you usually use, the server actual returns so it won’t match your sendmail configuration for authinfo when it tries to connect.

    You could always try each and if one doesn’t work then you know 🙂


  3. Matt, both and allow access to the cluster of mail servers that Rogers uses. When connecting to you are infact connecting to – it is just a CNAME.

    21:58 ash@galactica:[~]> dig
    ;; ANSWER SECTION: 3402 IN CNAME 86202 IN CNAME 1602 IN A

    21:59 ash@galactica:[~]> dig
    –snip– 1526 IN A

    When testing connections to either dns entry, you get access to any number of smtp servers in their farm.

    and so on. I don’t believe one or the other has anything to do with authentication per se. You will still need to authenticate.

    I do wonder though if resolves depending on your geographic location (just hazarding a guess based on the CNAME

  4. Good point yeah. I bet it’s GEOIP.

    I didn’t mean you don’t have to authenticate, just that the server you’re authenticating to must be the same in the authinfo config (however, like I said, I haven’t tried this, that’s just what I got from the posts).


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