We didn’t change our hosting provider since 2017. Now our company Bis Matrimony have decided to change the hosting provider. I heard that If we change to Digital ocean all cloud based hosting provider is blocking port 25, is it true? And how to host email server if ISP blocks port 25?
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Hi @bismatrimony,
Yes, it’s true, port 25 is blocked for new accounts to prevent any spam that might be generated.
Having said that, port 465 or 587 are not blocked and you can always use them. Not to mention using port 25 to send not authenticated e-mails is never a good idea even if the port was open.
Using port 25 usually leads to e-mails providers not wanting to receive the messages and rejecting them all together. With that said, I’ll urge you to use port 465 or 587 at all times and avoid using port 25.
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