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0
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3answers
48 views

Appropriate PTR records for mail server [duplicate]

I realize this is a common question around here, but I'm having trouble understanding one part of it. I want to setup a mail server to send newsletters and other marketing emails for a few of my ...
0
votes
1answer
47 views

How many bounces before removing a dead address to avoid recycled spam trap?

We are developing our own mailing tool and scan log and mail error to remove dead mails from our database. When an error 5xx is returned by mails servers, we remove the mail for a determined time ...
3
votes
2answers
766 views

Is the 10-DNS-lookup limit in the SPF spec typically enforced?

My understanding is that the SPF spec specifies an email receiver shouldn't have to do more than 10 DNS lookups in order to gather all the allowed IPs for a sender. So if an SPF record has ...
0
votes
1answer
220 views

Exchange How To Deliver Main Mail and Redirected Mail To Mailbox

My client requested an employee's mails to be blind carbon copied to himself. We did it with a simple rule. After that he told me if somebody sends email to both him and his employee, he only receives ...
1
vote
2answers
45 views

Should I change the Envelope From for Sendmail

Currently the Envelope from is apache_user@mydomain.com. All emails sent from this website use the From address of contact@mydomain.com. Should I change the Envelope send address to match the From ...
0
votes
2answers
135 views

DNS Record for Sending Mail Server

Have 3 servers - web server, mail server and outbound-only email server. The outbound-only email server sends transaction based emails on behalf of the web server (password reset, contact us, etc.) ...
0
votes
1answer
254 views

Configure Exchange to receive email from an internal address with an external IP address

Our company provides email marketing services. Our service is hosted and emails are deployed from our IP addresses. Clients use their email address(es) as the "from" address, and typically, as long as ...
1
vote
3answers
205 views

Does using a 'foreign' domain as email sender reduce email reputation?

We want to send emails through our webapp. Users of the app provide their email adresses. In some cases, we want to send transactional email from the webapp, using the current user as a sender. Does ...
4
votes
1answer
6k views

What is preferable, “no-reply@” or “noreply@”? [closed]

Having a service that sends out notifications to users, I'm currently thinking about changing the sender email address from "info@" to something more meaningful. Since a reply never makes sense, I'm ...
0
votes
2answers
506 views

Postfix bounce local delivery with source address from orig_to

I am creating a python script to deliver local mail using various means. The problem is this: This script has to accept multiple virtual domains defined in /etc/postfix/virtual The script does the ...
3
votes
5answers
4k views

Hotmail Sender ID always fails with “temperror” regardless of SPF

When we send mail to Hotmail servers, they do not recognize our Sender ID. In the receiving mail source, it reads Authentication-Results: hotmail.com; sender-id=temperror ... when it should say pass ...
1
vote
2answers
205 views

Does return-path email address domain have a deliverability reputation?

Just wondering if I should build my delivery reputation over return-path email address domain (by keeping it same in every campaign delivery) or can I change it regularly? Any thoughts? Thanks
0
votes
1answer
2k views

What software generates the SMTP bounce message “550 Envelope blocked - User Entry”?

I'm troubleshooting an issue where email sent from a specific user is blocked every time to only a specific sender. The NDR generated (from our Exchange server) has the following message: #550 ...
1
vote
2answers
119 views

Is an email whitelist tied to a domain name, or an IP address?

If I move my email server to a different server, and consequently a different IP address, but keep the same domain name, do I lose the work I've done to get whitelisted?
1
vote
1answer
363 views

Exim Throttling - how to setup exim to control email deliveries/hour to each ISP?

I couldn't find any resource about how to setup exim throttling. I needed to control email delivery flow respecting each ISP rate limits and guidelines. Can anyone point me some references on how to ...
1
vote
1answer
296 views

Mail deliverability rDNS best practice

I have an email server which sends email for multiple websites (different domain names each) the reply-to will correspond to no-reply@website-a.com (or whatever their username/website is) but the ...
1
vote
2answers
187 views

Our domain is being appended onto emails addresses that are sent from our server, why?

Our app sends out many types of email notifications. On some occasions, we see that the email addresses are getting our domain appended to them. e.g. michael@gmail.com turns into ...
1
vote
1answer
100 views

How do delivery receipt in horde works?

I want to send emails (using perl) using postfix MTA with a delivery receipt like horde does. Some have any idea?
1
vote
2answers
382 views

Email deliverability — Whitelist solution or Email delivery service?

our company is encountering the same recurring problem - email deliverability. A lot of our emails are still getting trapped in yahoo and gmail spam filters. We followed yahoo's best practices guide ...
1
vote
3answers
2k views

Is sending email from EC2 / Rackspace Cloud a bad idea?

In this article it mentions that TrendMicro is now treating all emails from Amazon's EC2 as coming from "Dial Up Users": likely to be spam and this is creating severe deliverability issues with their ...
0
votes
1answer
525 views

Sendmail: external alias not receiving relayed mail under certain circumstances

I have set up an alias in /etc/mail/aliases like this: user: xxxx@gmail.com This relay DOES work when I telnet to example.com 25 and send mail to user@example.com (where example.com is my ...
0
votes
2answers
310 views

Linux Sendmail server misdelivers mail to my own domain?

I'm seeing a very low percentage of misdelivered emails from my sendmail host. My sendmail server will try to email an address like "john.dough@johndoughs.own.domain.example.com" and the email will ...
3
votes
5answers
419 views

Email Delivery To University Mail Servers (.edu emails)

I'm running an app at www.universitytutor.com which lets people find tutors. Most of the tutors are college students. We send out a follow up email 2 weeks after someone contacts a tutor to ask how ...
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votes
5answers
2k views

Getting stats about deliverability from postfix

At work, our CEO is working on a plan to move away from a service provider who do our Spam filtering, etc. Currently, all our mail gets relayed out through this service, and all incoming email gets ...
8
votes
4answers
554 views

Steps to take to improve email deliverability

Successfully delivering email to my clients is a pretty high priority at my company. We are of course fully opt-in, paid clients, no possibility of spam, the whole thing. The information we email is ...