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Thread: [Email] Email Limits - How many emails per hour?

  1. #1
    Matt's Avatar
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    Default [Email] Email Limits - How many emails per hour?

    Important Points:

    A) Though the below are hourly limits, it does not mean that the numbers below are your maximum "list member" size. In other words, if your hourly mail limit is 100 emails, you can still send your emails to lists larger than 100 members, but your script settings may need to be adjusted to be in compliance to not exceed these hourly limits.

    B) Though the below are hourly limits, it does not mean that you can expect to send email 24 hours per day at these limits. In other words, if your hourly email limit is 100 messages per hour, sending 2400 emails per day is not within acceptable use. If you have a Shared Plan, you should send emails to your lists in off peak hours. If you have a Dedicated Plan or Cloud Server (Enterprise Cloud or Cloud VDS), you can set your own mailing schedules as desired without any outbound limits.

    Off peak is considered to start at 10 PM, USA PST (1 AM, USA EST) and ends at 4 AM, USA PST (7 AM, USA EST).

    Current Shared Plans:
    Unlimited Hosting Plans - 100 emails per hour
    SHOUTcast Hosting Plans - 100 emails per hour
    Personal Shared Hosting Plans - 250 emails per hour
    Professional Shared Hosting Plans - 500 emails per hour
    Resellers - All Reseller Servers have a 500 email per hour limit.
    (This means every domain in the reseller's control can send 500 emails per hour.)
    Semi-Dedicated Servers - 5000 emails per hour.

    Dedicated Plans:

    Cloud VDS - No Limit
    Dedicated Servers - No Limit
    Enterprise Cloud Servers - No Limit

    Old Shared Hosting Package Limits:
    Budget Shared Hosting Plans - 100 emails per hour
    Advanced Shared Hosting Plans - 250 emails per hour
    Professional Shared Hosting Plans - 500 emails per hour


    ------------------------------------------------------------
    Mailing lists
    available from your control panel:

    Mailman - All Features
    Rate Throttle: No
    Group Mode - Yes
    Announce Only - Yes
    Bounce Processing - Yes
    Archives - Yes

    PHP List - All Features
    Rate throttle: Yes
    Group Mode - no
    Announce Only - Yes
    Bounce Processing - Yes
    Archives - No

    What does this mean?

    If you have a mailman mailing list:
    That has more than 5000, 500, 250 or 100 list members respectively, anything after your hourly email limit will most likely not be delivered. The server will automatically toss it in the garbage. This is because mailman does not throttle outbound email efficiently. Several factors can allow you to exceed 100, 250, and the 500, 5000 list member limit, like time of day, time at which the mailman list was sent, server load and other factors. However for easy numbers plan on list sizes no greater than your hourly email limit when using mailman.

    If you have a php list mailing list:
    You can have more than 5000, 500, 250 or 100 list members respectively. You can bypass the problem with trying to deliver more than 500, 250 or 100 emails to your list members by throttling the rate at which emails are sent. To see how this works, please see this thread:

    Email rate throttle in php list

    If you have a vBulletin forum script:
    You can have more than 5000, 500, 250 or 100 forum members respectively. You can bypass the problem with trying to deliver more than 5000, 500, 250 or 100 emails to your forum members by throttling the rate at which emails are sent. To see how this works, please see this vBulletin Plugin:


    Email rate throttle in vBulletin

    Please Note:
    If you have more than 1000 list members on a SHARED hosting package, we ask you to schedule your lists in "off peak" hours. Off peak is considered to start at 10 PM PST(1 AM EST) Your list should be completed by 5 AM PST (8 AM EST)

    If you have a Cloud or Dedicated Server, feel free to send to your large email list at any time that works best for you.

    Please Note:
    If you have more than 5000 list members, you will need a Dedicated Server or Cloud Server. Please open a support ticket with us to check on availability of dedicated or simply order online at our main web site.

    Additional Information:
    It should be noted and often is not, that when you see email "limits" (if your host even advertises them) that your regular sending patterns, like replying to your buddy George about tonight's dinner reservation counts as one email. That means that now you only have 499 list members who will actually get your list's email.

    You should take into account your regular email work flow and list size when selecting a hosting plan, or selecting a time to send email to your list members. If you anticipate that you fire off something like an email per minute (wow, you can type fast!) that would be 60 emails that you replied to in one hour. Then if you decided to send of your mailing list within that same hour you could send to a list size of 440 members on a Professional Shared Web Hosting plan.

    Precautions:


    • If you attempt to exceed these limits it may result in account suspension (and possible termination on blatant, repeat offense) because unattended mailing lists that exceed these defined limits start to RAPIDLY increase the server load levels, usually to the point of instability. This happens because the server tries to remove the emails as they are generated, which increase reads/writes on the hard disks, and starts to eat up at RAM and CPU cycles.



    • Accounts that are reported by other ISP's or feedback loops, honeypot email addresses, or RBLs for spam complaints may be removed from our servers without a refund. Accounts that are discovered which are being reported too frequently for spam, generally means that the list owner did not, but should be using a Double Opt-in email list with clear unsubscribe instructions. Double Opt-in means that your list members should have signed up, by themselves, specifically to your mailing list and not added by you under any other circumstances. When they opt-in, a confirmation email is sent to the address that they left on your mailing list subscription form. When they click the confirmation, they have now opted in to receive your email, two times. Once to submit their email address, and twice when they click the confirmation link.



    • If you purchased a list of email addresses, sending email to this type of list is strictly forbidden.



    • SMTP AUTH RELAY is limited to 100 emails per hour on all packages by default. You can modify or completely eliminate this limitation when you have a dedicated or cloud server. On shared servers and semi-dedicated servers, AUTH RELAY is is set to 100 to prevent server blacklistings from users who share the server with you, who's PCs have been infected by a virus or other malware which tries to login to the email server to send spam from their account.



    • Programs like SendBlaster or similar email programs that run from your PC which use SMTP AUTH RELAY will not be able to send more than 100 emails per hour on shared or semi-dedicated servers. For this type of email, you would require a Dedicated Server or Cloud Server.


    Why does GlowHost rate-throttle outbound email?
    The reason for the throttles is to provide the most reliable email hosting experience for ALL customers that share the mail server. It helps us to prevent mailserver blacklistings when a spammer makes his way onto a shared server.

    We never know who is going to sign up for a hosting account and attempt to send spam from a server. We never will know when a long time and trusted customer is going to decide that one day they are going to test out their "marketing skills" and initiate a mailing campaign to a 50,000 email address list that they bought on ebay for $9.95.

    Email throttles help everyone to negate the blacklistings that many long-time web site operators are familiar with, especially those coming from bargain basement hosts that have no limit email hosting where server performance suffers drastically. Though our system is not 100% effective in preventing blacklistings, we do minimize them drastically for our users using these methods.

    If you are confident in your needs for unlimited outbound email services please pick a cloud or dedicated server, however please note your email list must be double opt-in and if it is not, and we receive spam complaints, your server may be disconnected without a refund.

    About Blacklistings:

    All web hosts including major players like yahoo end up on these spam blacklists.

    Blacklistings occur when a certain quantity of email has been reported to third party RBLs (Remote Block List) like Spamcop. These RBLs will add reported mailservers to it's internal block lists.

    Subscribers to these RBLs include major ISP like AOL, Comcast and even smaller ISP like GlowHost subscribe to RBLs. When these Internet Service Providers receive mail from a mailserver that is on one of their (subscribed) RBLs, it is immediately returned to sender, rendering the email undeliverable.

    Basically, an ISP subscribing to an RBL means penalize every web site that uses a particular mailserver host, because one unscrupulous spammer, and sometimes even an unknowing newbie, ruins it for the whole bunch. Ever heard of "sour grapes?"

    Blacklistings can last 24 hours and even longer for repeat offenders. Generally web hosts have little or no control over being removed from these RBLs with the exception of a few RBL providers that allow automatic "de-listing."

    However if a host removes themselves, and the spam complaints continue to roll in, the black listing is re-initiated, this time with a longer wait for de-listing, and that can go on indefinitely based on how bad the problem is with a particular mail server.

    Recap:
    We hope you can understand these mail limits and can see how they are in place for everyone as a whole.

    When you consider the numbers, if you have more than 500 legitimate list members paying for your services, you can probably afford a dedicated server or VPS for your bulk-mailing needs (among other benefits of dedicated server or VPS ownership).

    We feel our email throttles are realistic for the majority of site owners and hope you agree. If you require a dedicated server or VPS please open a support ticket and we can discuss your exact needs.

    You might also consider a 3rd party mailing service like Constant Contact who has a 60 day free trial
    Last edited by Matt; 09-26-2012 at 05:10 PM.
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  2. #2
    omarfilip's Avatar
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    Matt - I have a phpBB forum with m2f (mail to forum) with about 300 active members. The m2f function allows the forum to act as a list serv in essence - members can post messages to the forum by email and receive by email messages posted to the forum. For every post, there would be 300 outgoing emails. There aren't very many posts per day, (about 50 is the max) but I guess there could be 5-10 posts per hour every once in a while.

    What is the least expensive solution I could buy on Glowhost that would allow this to operate without reaching the maximum number of emails sent per hour?

    Thanks,
    Omar

  3. #3
    Matt's Avatar
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    Well, if the m2f function could be throttled to send the emails in batches, probably any solution would work. If it does not support throttling it would seem like it is not a well thought out script, especially for a very large board. This would almost certainly tank any server... if you had say, 20 posts per hour, all sending to 300 emails (or more on a busy board) each time.

    If there is no throttling possible, I would say your best bet for the lowest cost would be one of the VPS packages, but I recommend at least a VPS medium because cPanel needs a lot of resources and sometimes the Lite package is just not enough for established sites.

    A semi-dedicated may work as well, but for the same price or a little more you might as well get a private environment and unlimited email capabilities.
    Last edited by Matt; 01-26-2008 at 05:03 PM.
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  4. #4
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    Would a semi-dedicated server be better than a VPS?

  5. #5
    Matt's Avatar
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    I actually edited the last line of my post, probably when you were replying. I added this:

    A semi-dedicated may work as well, but for the same price or a little more you might as well get a private environment and unlimited email capabilities.
    So in my opinion, a VPS is better for your circumstance and a semi-dedicated server might be better for someone else.
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  6. #6
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    Help me understand the difference between vps and semi dedicated:

    VPS has no limits on mail sent, while semi-d does, correct?

  7. #7
    Matt's Avatar
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    A semi-dedicated server is essentially a very large shared hosting plan. There are no more than 30 websites per physical machine. It has higher resource limits than traditional shared hosting, for example, you can send 10 times as many emails per hours as a professional shared hosting package.

    A VPS is a separate instance of Linux and cPanel on a physical machine. There is no set cap on how many VPS's will be on a physical machine, and each VPS may have hundreds (or more) sites on each VPS. However, unlike shared hosting, a VPS is isolated from the other VPS's on the same machine, so they function nearly as a dedicated server. VPS also come with root access where a shared hosting account would not.
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  8. #8
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    Thanks Matt.

    I was unable to find some details on the VPS plans;
    What are the email specifics? How many email accounts are allowed? SMTP or Sendmail for outgoing email?

    How many MySQL databases are allowed?

    I really like the quick support available here.

    Cheers,
    Omar

  9. #9
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    Hello, if you have VPS, you have unlimited e-mail accounts and MySQL databases, you can use both SMTP and sendmail, as you wish. What email specifics do you want to know?

  10. #10
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    That was it, mainly. Since GH has a money back guaranty I think I can safely try it and see if everything will work.

    Cheers,
    Omar

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