Many people who run a website, especially one that
encourages visitors to sign up for e newsletters, like to run email marketing
campaigns that are designed to encourage recipients to make a purchase or
engage further with the brand. If this is something you have been doing or are
interested in doing, you will need to develop an understanding of SMTP sending
limits.
Firstly, what are these limits? Basically, when you send an
email through your main account, you are actually sending it through your web
host’s SMTP mail server. When you are sending a moderate number of emails, this
server will act as you expect it to. When you start sending a large amount of
emails, however, you might exceed the number of requests that your web host has
allocated to your website, resulting in error messages and unsent mail.
But why do web hosts impose SMTP sending limits? There are
actually a number of reasons for this, including reducing the amount of spam
that is sent by a single user and reducing the strain on the server’s
resources. Email marketing often involves huge lists of recipients, which can
clog up the server for other users who might be trying to send a single email.
