If you're transferring your account to another server, before you actually do the transfer it's a good idea to rename your old account something like "(YOUR ACCOUNT) has moved" and put a link to your new account in the profile text.

Most Mastodon apps show links to new accounts automatically, but some don't. Renaming and including the link in the profile means everyone will see the redirect and new account, no matter what app they use.

For an example see here:

➡️ https://mastodon.online/@FediFollows

FediFollows has moved! (@[email protected])

2.13K Posts, 1.45K Following, 1.71K Followers · This account has moved to @[email protected] Please follow me there instead!

Mastodon

p.s. If you want easy to understand step-by-step instructions for transferring your Mastodon account to another server, see here:

➡️ https://fedi.tips/transferring-your-mastodon-account-to-another-server/

Transferring your Mastodon account to another server | Fedi.Tips – An Unofficial Guide to Mastodon and the Fediverse

An unofficial guide to using Mastodon and the Fediverse

@FediTips

One footnote to this:

Having migrated, if you decide you'd like to continue using the old account (maybe as a backup or alt), but WITHOUT actually migrating your followers back to it, removing the redirect restores it to normal operation.