Re: [gentoo-user] Re: gmail smtp overwrites the sender

[Michael Mol <mikemol@gmail.com>]

On Thu, Mar 15, 2012 at 10:29 AM, Grant Edwards
<grant.b.edwards@gmail.com> wrote:
> On 2012-03-14, Mick <michaelkintzios@gmail.com> wrote:
>> On Monday 12 Mar 2012 18:34:37 Grant Edwards wrote:
>>> On 2012-03-12, Stroller <stroller@stellar.eclipse.co.uk> wrote:
>>>
>>>> No, I simply meant that if you use Postfix you don't have to use
>>>> anyone else's SMTP server,
>>>
>>> If you've got a static IP address, a domain, an MX record, and
>>> whatever other requirements a lot of sites are now placing upon
>>> senders of mail.
>>>
>>> I used to use my own SMTP server, 10 years ago it worked fine.  More
>>> recently, too many destinations wouldn't accept mail from me -- so I
>>> had to start using mail relays.
>>
>> Perhaps your mail address was blacklisted? Many ISPs IP address
>> blocks are blacklisted these days.
>
> I know that was sometimes the case from the rejection message sent by
> the destination SMTP server.  Even though I had a static IP address
> and an valid MX entry for the sending machine's hostname, some sites
> wouldn't accept mail because my static IP addres was in a block used
> for DSL customers (of which I was one).

Yeah, I can't even send email to my gmail account from my Comcast
public IPv4 address.

>
>> Also some ISPs are blocking ports (like 25 and 2525) to minimise spam
>> sent out of compromised boxen.  They would typically allow you to
>> relay through their mailservers though.
>
> I've never run into that, but I know people who have.
>
> In either case, I wouldn't advise anybody to try using their own SMTP
> server to deliver mail directly to destinations unless they have their
> own domain, their own IP block, and the time+skills require to fight
> with the problems.  Anybody with the requisite resources and skills
> probably wouldn't be asking questions here about how to use Gmail's
> SMTP server.

My workaround involved relaying my network's outgoing email through my
VPS node's email server. (My VPS provider, prgmr.com, doesn't seem to
be on any blocklists, etc.)

-- 
:wq