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Sendgrid

Sendgrid provides message delivery as a service. In public clouds, mail delivery services are used instead of self-hosted mail delivery likely because Simple Mail Transfer Protocol (SMTP) port is blocked in these cloud providers. Mails are instead sent via the 465 (TLS, deprecated) or 587 (startTLS) ports.

In Ahola Digital's attracs.com GCP organization we have been granted access to use SMTP port by Google.


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