For bulk emails, you should probably opt for a domain and a fixed IP address associated with it – this will increase your resistance to spam filters.Also, you need to request the correct DNS server and permission for MX record resolution. You can solve this issue by contacting your ISP provider and finding out what limitations they may impose. Nevertheless, you should be prepared for the following: There are no specific requirements so far. So, if you want to eliminate dependability, you can of course set up an SMTP server using specific software. However, they still have the dependability factor. Such third-party solutions are more secure while still providing complete control over your email infrastructure. To sum up the comparison, here’s the comment we found on Reddit: Source: RedditĬloud-based sending solutions such as Mailtrap Email Sending also provide all the advantages listed above. Running a local SMTP server takes time and effort Privacy and control of all your outgoing mail No daily or hourly limit on the number of outgoing emails

Pros and cons of a local SMTP server Pros So, let’s put Direct Send away and figure out why someone would run their own SMTP server. It can be blocked by email filters because emails are not sent from a regular SMTP server.It cannot send non-personalized emails.It’s unfit for bulk email sending due to multiple connections to many different servers.It cannot be used if port 25 is blocked by your Internet Service Provider (ISP).This is known as Direct Send and you can use it through specific email software programs.ĭirect Send is not very reliable, though, and here is why: SMTP server is a computer or an app that sends emails using Simple Mail Transfer Protocol (SMTP).Īn alternative solution is to bypass the SMTP server and send emails directly to the destination. Using an outgoing SMTP server is the traditional method of sending emails. These are pretty common for all sizes of projects.īut what if you don’t want to use SMTP relay services provided by Gmail or its alternatives? In this blog post, we’ll teach you how to set up a local SMTP server and get rid of any email-sending dependencies. In our blog post about the best free SMTP servers, we discussed cloud-based solutions for sending emails.

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