We use iis 6 to send out emails for our website but some email addresses bouce backs. It only appears to be 2 addresses. There is at least 100 different email addresses sent to at the same time as these. Here are the 2 different messages we get.  First one.  You do not have permission to send to this recipient.  For assistance, contact your system administrator.             secure.example.com #5.7.1 smtp;550 5.7.1 Fix reverse DNS for xx.xx.xxx.xxx or use your ISP's mail server  Second one.  Could not deliver the message in the time limit specified.  Please retry or contact your administrator.             secure.example.com #4.4.7  Not sure if they both relate to reverse dns. If you can help or require more information please let me know.
58087
I started a new service and we need to send emails to our customers (new account confirms, etc).   My server is known as prod01.bidrodeo.com and resolves to 97.107.134.38 .  For reverse DNS, 97.107.134.38 resolves to prod01.bidrodeo.com . However, all our email addresses are in the form of user@bidrodeo.com. Should I make the reverse DNS point to bidrodeo.com instead?   My emails are getting delayed or rejected by certain systems and i am not sure if my reverse DNS is not set up correctly.
113009
I host multiple domains on a single IP address:    cats.com  A @ --&gt; 10.20.30.40 A mail --&gt; 10.20.30.40 MX @ --&gt; mail  dogs.com A @ --&gt; 10.20.30.40 A mail --&gt; 10.20.30.40 MX @ --&gt; mail   I need to set up a PTR record for the IP address. This is so that forward-confirmed reverse DNS will succeed for other mail servers.  DNS query type PTR on 10.20.30.40 --&gt; returns PTR-record="cats.com" (1 result) DNS query type A on "cats.com" --&gt; returns A-record=10.20.30.40 (1 result)   If I can only have one PTR record for my IP, that points to cats.com, how will FCrDNS ever succeed for dogs.com?    Can I just use the domain name they both share (80.70.60.50.static.host.net) in the PTR ?  Thanks!
42053
I get the following deliverable message when trying to send using another accounts email address:     You can't send a message on behalf of this user unless you have permission to do so. Please make sure you're sending on behalf of the correct sender, or request the necessary permission. If the problem continues, please contact your helpdesk.   The account has Full Access and Send As permissions in Exchange 2010. Deleting the address from the From: field (clicking the black cross), redownloading the GAL or deleting the C:\Users\username\AppData\Local\Microsoft\Outlook\Offline Address Books folder all fix the problem, but only for one email. After the first email is sent successfully I then continue to get the above message again.  Turning off Cached Exchange Mode also fixes the problem, but I want that on.  Is there another way to fix this?
70766
I'm looking to simultaneously send the same email to multiple recipients.  Let's say I want to email John and Bill the same email, I want them to be in the "To:" field, but I don't want them to see each other in the address list.  I don't want to bcc them both because then they see they are bcc'd.  I want them to each get their own copy of the identical email and to have 2 emails in my sent folder - one for each of them.  Essentially I want the same result as if I separately sent them each the identical email, but I'd like to do it in fewer steps.  Can I accomplish this either natively or with a plug-in, or some pre-existing code?  NOTE: I am looking to do this interactively (in real time), not in batch.
22255
This is a  about Fighting Spam.   Also related:                    There are so many techniques and so much to know about fighting SPAM. What widely used techniques and technologies are available to Administrator, Domain Owners, and End Users to help keep the junk out of our inboxes?  We're looking for an answer that covers different tech from various angles. The accepted answer should include a variety of technologies (eg SPF/SenderID, DomainKeys/DKIM, Graylisting, DNS RBLs, Reputation Services, Filtering Software [SpamAssassin, etc]); best practices (eg mail on Port 25 should never be allowed to relay, Port 587 should be used; etc), terminology (eg, Open Relay, Backscatter, MSA/MTA/MUA, Spam/Ham), and possibly other techniques.
111739
I'm getting a lot of mail in my root user's mail account. This appears to be mostly reports and errors from things like cron scripts. I'm trying to work though and solve these things, possibly even have them be piped to some sort of "dashboard" - but until then how can I have these messages go to my personal e-mail account instead?
69229
I'm helping out a friend manage his website. Said friend has a domain, website.com, which I am transferring from his old host (OLD) to his new host (NEW), but OLD does not provide email services (or, at least, not intuitively). As a result, he wants both:   To host the website at NEW To use the email servers at OLD so he can continue using the email accounts he set up there.   The move from OLD to NEW has taken place, and I have updated the DNS records so they no longer point at ns1.old.com, and now point instead at ns1.new.com, and so on.  But having searched around a bit for the solution to the email aspect, I'm a little uncertain. I've updated the MX record at NEW to point back to ns1.OLD.com, but emails are still failing - and I'm sure the reason for this is obvious, but I'm not quite grasping what I need to do here.  As I understand it, the process ought to be as follows:   Mail sent to account@website.com website.com routes the mail to the host at NEW NEW then uses the new MX record to rout it to the servers at OLD Hey presto, the email should appear in the email inbox at account@website.com at OLD.   But this isn't happening. I get a 550 error telling me to turn on SMTP authentication, which I've read is a sure sign that I've got the MX configuration wrong. Any assistance on this would be really greatly appreciated.  tl;dr: Friend wants to move site hosting to NEW, but keep email hosting at OLD - I don't know what to do with MX and nameservers and so on to make this happen.
1429
This is a  about how to handle email sent from your server being misclassified as spam.  For additional information you may find these similar questions helpful:                    Sometimes I want to send newsletters to my customers. The problem is, that some of the emails get caught as spam messages. Mostly by Outlook at the client (even in my own Outlook 2007).  Now I want to know what should be done to create "good" emails. I know about reverse lookup etc., but (for example), what about a unsubscribe link with an unique ID?  Does that increase a spam rating?
867
How can I know where an email really originated from? Is there any way to find it out?     I have heard about email headers, but I don't know where can I see email headers, for example in Gmail. Any help?
16609
I have a web application that sends me many emails that are only for notification purposes - and so, are not important. There can be a great deal of these per day, and I sometimes forget to delete them.    I am using a Microsoft Exchange mail server, and do not have administrator rights to it. Is there a way I can set up/configure from Outlook a procedure that deletes emails from a specific sender after an amount of time?
14000
I've been having trouble getting my server to send email and I haven't for the life of me figured out how to fix it. If anyone could give me some simple pointers, that would be muchly appreciated!  May 19 15:36:03 ubuntu-12 sm-mta[2484]: s4JFa3jp002484: from=&lt;www-data@ubuntu-12.04-     production&gt;, size=412, class=0, nrcpts=1, msgid=&lt;201405191535.s4JFZw4c002483@ubuntu-12.04-  production&gt;, proto=ESMTP, daemon=MTA-v4, relay=ip6-localhost [127.0.0.1] May 19 15:36:03 ubuntu-12 sendmail[2483]: s4JFZw4c002483: to=myname@mycompany.com, ctladdr=www-data (33/33), delay=00:00:05, xdelay=00:00:05, mailer=relay, pri=30123, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (s4JFa3jp002484 Message accepted for delivery) May 19 15:36:03 ubuntu-12 sm-mta[2487]: s4JFa3jp002484: to=&lt;myname@mycompany.com&gt;, ctladdr=&lt;www-data@ubuntu-12.04-production&gt; (33/33), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=120412, relay=mailserver.mycompany.com. [213.171.216.115], dsn=5.0.0, stat=Service unavaila$ May 19 15:36:03 ubuntu-12 sm-mta[2487]: s4JFa3jp002484: s4JFa3jp002487: DSN: Service unavailable May 19 15:36:03 ubuntu-12 sm-mta[2487]: s4JFa3jp002487: to=&lt;www-data@ubuntu-12.04-production&gt;, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30000, dsn=2.0.0, stat=Sent
16027
I need to send email via my C# app. I come from a VB 6 background and had a lot of bad experiences with the MAPI control. First of all, MAPI did not support HTML emails and second, all the emails were sent to my default mail outbox. So I still needed to click on send receive. If I needed to send bulk html bodied emails (100 - 200), what would be the best way to do this in C#?
25211
Is it possible to prevent an email from being forwarded, or to have sensitive information automatically removed when reply-all/forward is pressed?  For example, a Google Calendar invitation includes a link to directly accept/reject the event. However, if someone clicks reply-all, and they keep the HTML formatting, the link will be shared with everyone else who received the invitation, and they can change the user's RSVP. (Specifically, the email is sent only to you, but has a "To:" header showing all invitees, so the problem remains.)  What can be done to ensure that the recipient does not accidentally share the sensitive link? Would it be possible with some MIME trickery or with a semi-standard header? Or is the best practice to refrain from including such "direct action" links when someone might be tempted to reply-all?
80492
I'm having some trouble with setting up a SMTP server on a windows server 2003 machine, while trying to send emails using PHP through the internet, but to domain email addresses.  Common info:   Machine has Windows Server 2003 Server Machine on a domain (mydomain.com) Machine is not a domain controller Machine accesses a domain controller through the internet (WAN with a corporate VPN link by the internet provider setup on the machine's gateway - adsl modem/router) Email addresses use the same suffix (mydomain.com) Do not have access to domain controller configuration   First Scenario   TCP/IP DNS: 1st 192.168.200.xxx   2nd 8.8.8.8 Direct access to domain controller is functional PHP mail using localhost to a user@mydomain.com won't work, because the remote mail server rejects emails from internal traffic (apparently!?!)   Second Scenario   TCP/IP DNS: 1st  8.8.8.8   2nd 192.168.200.xxx   (switched) Direct access to domain controller is not functional, only local accounts work PHP mail using localhost to a user@mydomain.com does work, because the remote mail server is accessed through its internet/external address.   So, what I needed is to have both (1) access to the domain controller and (2) PHP mail using localhost to a user@mydomain.com account working.  Any pointers? Thanks in advance
84025
I work for an educational services company based in India. We've around one million students enrolled as users. We're frequently facing the problem of our bulk mailers regarding upcoming exams, new product launches and promotions going into spam mail folders of the students. Is the problem in the headlines? Or where else? what can we do to reduce this number?   This is killing us, we cannot have an impossibly large precentage of mails not being opened..Please help.
72814
I would like to create an Outlook rule that stops me from sending out emails that have more than ten email addresses in the "To:" line. Is this even possible? I'm using Outlook 2010 on Windows 7 64-bit.  My reasoning: I send out a distribution letter to a large number of addresses. I usually send this email to myself with the distribution list addresses in the "BCC:" line. Every once in a while I mess up and accidentally put the distribution list addresses on the "To:" line instead. This is a problem because then each email recipient will see all the addresses on the list. I want Outlook to stop me from doing this, or at least warn me before I send it out.  I also welcome suggestions on how to get around this problem.
71973
I've been asked to work on a system message on an intranet where by there are various URLs (linking to lists of content) that have permission rights attached to them, so only certain users have access to the content.  Currently it's spec'ed so that if a user without permission clicks on one of these URLs a message appears which says 'You do not have Permission to view this content'.  I'm wondering is there a better way to handle this?  I was thinking of maybe disabling the links (the user has no permission for) altogether.  There are pro's/cons here.  Pro:  It will stop users clicking on said link and receiving a message which may leave them feeling stupid and maybe annoyed they don't have permission.  Con:  Maybe the user needs to/would like to be aware that this content exists (so needs to be recognizable as a URL) even if he/she cannot view it.  Anyone any ideas on this/seen any similar patterns in use?