0
votes
0answers
60 views

Forwarding email through a dummy relay to avoid blacklisting

I have a mail server that allows individual users to forward mail to other providers. The server performs the usual anti-spam checks, but spam still gets through occasionally -- especially with the ...
2
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3answers
2k views

Ubuntu Postfix Gmail SMTP Relay Not Working

I currently have postfix set up to relay messages from my websites through gmail, and up until recently it was working perfectly. However, within the last week or so (not really sure when) I started ...
1
vote
1answer
800 views

using gmail as email relay for sendmail

I used to be able to send emails using a gmail account & sendmail configured using one of the guides on the Internet, for example: ...
1
vote
1answer
266 views

Is there any risk to sending emails to accounts that no longer exist?

As mentioned in a previous question of mine, I send a lot of emails. I have calculated that approximately 2% of them are coming back to me immediately with the general text reading: 550-5.1.1 The ...
0
votes
1answer
5k views

How to solve authentication error in sendmail relay through gmail [closed]

I followed the steps in http://www.linuxha.com/other/sendmail/gmail.html to setup gmail in send mail. But when I try to send mail I got the authentication failure message. —– Transcript of session ...
0
votes
4answers
4k views

Google Apps as SMTP relay?

We have linked the domain of our company to Google Apps and we also have a Kerio Connect (mail server) installed in our company which uses Google as SMTP relay. As google requires SMTP authentication ...
0
votes
2answers
815 views

DNS, SMTP Problem. Trying to send emails through PHP scripts using Gmail server

I have purchased a dedicated server some days ago and I think I don't have enough knowledge to configure its DNS etc. Well, I'll describe my situation. I have a dedicated server for virtualization, ...
0
votes
2answers
444 views

How to send email from non-TLS enabled client through TLS-only Gmail account

I need to be able to send email from a client (an OKI document scanner) which is non-TLS capable. But my company's email service is provided by Gmail-Google Apps, which is configured to force TLS ...
1
vote
2answers
3k views

Postfix relays via gmail, FROM email is wrong

I recently set up a home-server. And since my ISP quite annoyingly blocks outgoing port 25 I can't setup the SMTP properly. So I set it to relay via gmail(I don't send a lot of mails by this server ...
1
vote
3answers
6k views

Sending mail from Postfix via Gmail: unable to get local issuer certificate, certificate not trusted, No worthy mechs found

System specs CentOS 5.5 Postfix 2.3.3 Scenario I've been following Configure Postfix to send/relay emails Gmail (smtp.gmail.com) via port 587 to try and get the connection between Postfix and ...
3
votes
4answers
4k views

SMTP relay through GMail overrides “from:” address with “[me]@gmail.com”

I've been trying to figure out if this is a new "feature" or if there is an issue with my configuration. I'm using Ubuntu 10.04 Desktop with Postfix as MTA. My smtp (as opposed to smtpd) ...
3
votes
2answers
20k views

Easiest way to configure local SMTP server to relay through gmail on Windows?

We have gmail for our corporate email provider. I want to be able to send mail through smtp.gmail.com from ASP.NET. I have managed to do this just fine - and it has the benefit of all sent items ...
6
votes
1answer
23k views

How to configure sendmail to send email via GMail (smtp.gmail.com), using port 465 or 587?

I have configures sendmail to send email via my GMail (Google Mail) account, i.e. via smtp.gmail.com, by editing /etc/mail/sendmail.mc and regenerating sendmail.cf: -dnl ...