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

[Alexander]

I hope that you'll like working with us and will not want to use this feature.

[Matt]

It depends on your server and if you have root access or not. Do you have root access? Is the server WHM/cPanel? This might be more of a question for a unique thread.

This thread is regarding the existing mail limits on the various types of hosting packages that we offer, which cannot be set by you unless you have root.

[WHK]

Matt,

I've installed an email module on Prestashop that we're using for our club's membership and payment system. There are about 400 members. The module is setup to use the Glowhost SMTP server (our domain name) for outgoing. Can you comment if the setup I've listed below will be ok when I send our first mass email out to the members just after New Years? I don't want to trigger blacklists. I tested this in a test message with a small group of 10 people and the module appears to work. Here are the settings I configured in the mail module.:

Throttle Method: Emails per Minute
Emails per minute Bytes per minute No throttling Makes the module run at a rate-limited speed when sending emails.

Throttle rate: 100
Throttling rate, bytes per minute or mails per minute depending on the throttling method selected (if any). Reasonable values may be 100 emails/minute or 1024 x 1024 x 10 = 10,485,760 bytes (10MB)/minute.

Enable antiflood: Yes
Select to use antiflooding for receiving SMTP servers which impose limits on the number of messages that may be sent during a single SMTP connection.


Batch: 99
The number of emails sent in a single SMTP connection before disconnecting for a period. A reeasonable value may be 100.


Pause: 30
Time period in seconds that module should pause for between the disconnect/re-connect process.


Sendmail path
Path to local MTA binary (sendmail, Exim, Postfix). For example, /usr/sbin/sendmail


Thanks,
Bill

[Alexander]

Well, in case the script will send 100 emails per minute for 400 recipients you will exceed the limit unless your limit is 500 emails per hour or more. Thus, you need to adjust the settings. If I were you, I'd set:

Throttle rate: 20
Throttling rate, bytes per minute or mails per minute depending on the throttling method selected (if any). Reasonable values may be 100 emails/minute or 1024 x 1024 x 10 = 10,485,760 bytes (10MB)/minute.
Enable antiflood: Yes
Select to use antiflooding for receiving SMTP servers which impose limits on the number of messages that may be sent during a single SMTP connection.
Batch: 20
The number of emails sent in a single SMTP connection before disconnecting for a period. A reeasonable value may be 100.
Pause: 900
Time period in seconds that module should pause for between the disconnect/re-connect process.

This will make the script to send 20 emails each 15 min and will fit the lowest limit.

[WHK]

Alexander,

Thanks for the feedback. I made the suggested changes and will leave it configured that way for our club mass mailing. The way I read it this will limit at 120 emails per hour which will cover the entire list in just over three hours.

[WHK]

I just sent a trial with the limits set. Look at the log dump and the Helga login message. Is that test in red boilerplate, or am I triggering the message with this?

++ Starting Swift_SmtpTransport
<< 220-helga.gendns15.com ESMTP Exim 4.69 #1 Sun, 01 Jan 2012 01:26:32 -0500

220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.

>> EHLO chnyc.us

<< 250-helga.gendns15.com Hello chnyc.us [63.247.73.38]
250-SIZE 52428800
250-PIPELINING
250-AUTH PLAIN LOGIN
250 HELP

>> AUTH LOGIN

<< 334 VXNlcm5hbWU6

>> Y2hueWMuc3RvcmVAY2hueWMudXM=

<< 334 UGFzc3dvcmQ6

>> UmhvZGVzMTk=

<< 235 Authentication succeeded

++ Swift_SmtpTransport started
>> MAIL FROM:

<< 250 OK

>> RCPT TO:

<< 250 Accepted

>> DATA

<< 354 Enter message, ending with "." on a line by itself

>>
.

<< 250 OK id=1RhEsM-0001Ez-4Y

>> MAIL FROM:

<< 250 OK

>> RCPT TO:

<< 250 Accepted

>> DATA

<< 354 Enter message, ending with "." on a line by itself

>>
.

<< 250 OK id=1RhEsb-0001Ez-D9

[David I]

Hi WHK,

I have found this message in the logs and as I can judge, it was successfully delivered. Can you please open a trouble ticket in order to find out more details for this case?