Question 1

How to run MailHog with Docker?

Accepted Answer

Use the official Docker image from Docker Hub: run 'docker run -p 1025:1025 -p 8025:8025 mailhog/mailhog' to start the SMTP server on port 1025 and web UI on port 8025, as noted in the Docker installation section.

Question 2

MailHog vs MailCatcher which is better?

Accepted Answer

MailHog, built with Go, is easier to install and more portable without dependencies, while MailCatcher is Ruby-based and might offer more UI polish. Choose based on your need for simplicity versus feature richness.

Question 3

Can MailHog send emails to real addresses?

Accepted Answer

Yes, MailHog allows releasing captured emails to real SMTP servers for actual delivery, useful for testing end-to-end workflows without spamming users, as mentioned in the features under 'Message Release'.

Question 4

How to integrate MailHog with a PHP application?

Accepted Answer

Configure PHP's sendmail_path in php.ini to use mhsendmail or the native sendmail command pointing to MailHog's SMTP port (e.g., 'sendmail_path = /usr/sbin/sendmail -S mail:1025'), as shown in the sendmail examples.

Question 5

Does MailHog support SMTP authentication?

Accepted Answer

Yes, MailHog implements SMTP AUTH (RFC4954), allowing testing of applications that require authenticated SMTP connections, detailed in the features list and configuration docs.

Question 6

What API endpoints does MailHog provide?

Accepted Answer

MailHog offers APIv1 and APIv2 with endpoints like /api/v1/messages to list messages and /api/v2/messages/{id} to retrieve or delete them, with full documentation available in the APIv1 and APIv2 docs.

Question 7

How to persist emails in MailHog between restarts?

Accepted Answer

Configure MailHog to use MongoDB or file storage by setting flags like -mongodb-uri or -file-storage-path, as described in the storage options, ensuring messages survive restarts beyond the default in-memory storage.

MailHog

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