Re: [Nmh-workers] Emails being tagged as spam -- NMH solution???

[Bob Carragher]

[Note:  this email is being sent directly from the GMail web
 client, so its header should be correct and not "spammy."]

Oliver:  yes, I'm using Comcast.  Here are the (I think) relevant
bits of my sendmail.mc file:

     FEATURE(masquerade_envelope)dnl
     FEATURE(`genericstable')dnl
     GENERICS_DOMAIN(`localhost.localdomain')dnl
     MAILER(`local')dnl
     MAILER(`smtp')dnl
     define(`SMART_HOST', `[smtp.comcast.net]')dnl
     MASQUERADE_AS(gmail.com)dnl

Please send me details on using Exim.  If that eliminates the
need for Sendmail, or at least for me to directly configure it,
I'm all for it!  I only use Sendmail to send my own outgoing
emails (which always use my GMail account).  Thanks!

Ralph:  yes, I am (always [trying to]) claim that my emails come
from GMail.  I absolutely believe that I'm doing it wrong, or at
least in a "spammy" way.  I can understand the need for TLS or
SSL -- and would not want to send outgoing mail in an insecure
fashion -- but I don't know how to set that up with sendmail.
Would this be a good reference (for TLS)?

     http://www.sendmail.org/~ca/email/starttls.html

Thanks a lot!

Bob

On Fri, 20 Feb 2015 14:41:16 +0100 Oliver Kiddle <address@hidden> sez:

> Bob Carragher wrote:
> > Emails that I send are starting to be tagged as spam or potential
> >
> > As you can probably see from this message's header, my nominal
> > email provider is Google (@gmail.com) but my ISP is Comcast.  In
>
> Is your sendmail configured to use a comcast mail server as a
> smart host?  Doing either that or having sendmail send mail to
> the final host directly itself is not such a good idea these
> days.  If you use a gmail.com address, use gmail's smart host
> for outgoing mail.  This works better with stuff like SPF and
> domain keys which try to verify the sending host.
>
> I have Exim configured to look at the From: address I've set
> and pick between one of several smart hosts.  In fact, the main
> reason I use exim is that it made that easy to configure.  I
> can send you more details on that if you're interested.
>
> Oliver


On Sat, 21 Feb 2015 18:57:14 +0000 Ralph Corderoy <address@hidden> sez:

> Hi Bob,
>
> Oliver wrote:
> > If you use a gmail.com address, use gmail's smart host for outgoing
> > mail. This works better with stuff like SPF and domain keys which try
> > to verify the sending host.
>
> Oliver's quite right;  if you're claiming the email is from
> Gmail then it really has to travel out via their servers.  A
> lot of the rest of the world will check things like Gmail's SPF
> definitions, and any DKIM header.
>
>     $ dig +short gmail.com txt
>     "v=spf1 redirect=_spf.google.com"
>
> https://support.google.com/mail/troubleshooter/1668960?hl=en#ts=1665119,1665162
> says how to send mail to Gmail's SMTP server for it to send on.
> It's part of their information for configuring POP3 to receive
> email, but it's useful standalone.  You do have to use TLS or
> SSL for the SMTP;  a plain text connection won't do.  It looks
> like recent send(1)s support -tls amongst other stuff.
>
> Cheers, Ralph.